速求小学对对子

不是的,高原地区的湖海拔是正的.

等于3
望采纳

赤道是地球的一个大圆,因此地球上的大圆每10弧线的长度约为111千米（球的大圆是指通过球心的截面与球面的相交线）.

苹果树有50÷（1-4/9）=90棵
梨树有90-50=40棵

32,3
64,0
2n,3
2n+1,0
不就是找规律吗

到所学的政治书一章一章地找论点,理清思路,政治题需要对书的框架有整体把握,要能联系不同的章,有条理,编号,根据赋分找论点的数目,一般每点两分.学会有自己的独立思考.

As you know,there's no enough clean water for people.So many of them lose their lives because of water.In a lot of
countries,people have to cut trees for living.So there's nothing to keep water from running away.Also we have polluted the land,the river and the air.So we have to face more and more floods and droughts .
It's time that we must do something useful to protect our environment.We can plant trees and take good care of them.We can save the water and ask our parents to do so.We can't throw any litter onto the ground and we should collect them for recycling.
If we take good care of our earth today,it will be more beautiful tomorrow
如你所知,有没有足够的清洁饮水的人.所以他们中的许多人失去了他们的生命,因为水的行为.在不少国家,人们不得不削减树木为生活.因此,就没有什么好让水从离家出走.此外,我们已受污染的土地,河流和空气.因此,我们要面对越来越多的洪水和干旱.
它的时候,我们必须做一些有益的,以保护我们的环境.我们可以种树,并好好照顾他们.我们可以节省用水,并要求我们的父母这样做.我们不能有任何垃圾,丢在地上,并要搜集他们的回收对象.
如果我们好好照顾我们的地球,今天,将是更加美好的明天

都要约分的么

1.125*3+125*5+25*3+25
2.9999*3+101*11*(101-92)
3.(23/4-3/4)*(3*6+2)
4. 3/7 × 49/9 - 4/3
5. 8/9 × 15/36 + 1/27
6. 12× 5/6 – 2/9 ×3
7. 8× 5/4 + 1/4
8. 6÷ 3/8 – 3/8 ÷6
9. 4/7 × 5/9 + 3/7 × 5/9
10. 5/2 -（ 3/2 + 4/5 ）
11. 7/8 + （ 1/8 + 1/9 ）
12. 9 × 5/6 + 5/6
13. 3/4 × 8/9 - 1/3
14. 7 × 5/49 + 3/14
15. 6 ×（ 1/2 + 2/3 ）
16. 8 × 4/5 + 8 × 11/5
17. 31 × 5/6 – 5/6
18. 9/7 - （ 2/7 – 10/21 ）
19. 5/9 × 18 – 14 × 2/7
20. 4/5 × 25/16 + 2/3 × 3/4
21. 14 × 8/7 – 5/6 × 12/15
22. 17/32 – 3/4 × 9/24
23. 3 × 2/9 + 1/3
24. 5/7 × 3/25 + 3/7
25. 3/14 ×× 2/3 + 1/6
26. 1/5 × 2/3 + 5/6
27. 9/22 + 1/11 ÷ 1/2
28. 5/3 × 11/5 + 4/3
29. 45 × 2/3 + 1/3 × 15
30. 7/19 + 12/19 × 5/6
31. 1/4 + 3/4 ÷ 2/3
32. 8/7 × 21/16 + 1/2
33. 101 × 1/5 – 1/5 × 21
34.50＋160÷40
35.120-144÷18+35
36.347+45×2-4160÷52
37（58+37）÷（64-9×5）
38.95÷（64-45）
39.178-145÷5×6+42
40.812-700÷（9+31×11）
41.85+14×（14+208÷26）
43.120-36×4÷18+35
44.（58+37）÷（64-9×5）
45.(6.8-6.8×0.55)÷8.5
46.0.12× 4.8÷0.12×4.8
47.（3.2×1.5+2.5）÷1.6
48.6-1.6÷4= 5.38+7.85-5.37=
49.7.2÷0.8-1.2×5= 6-1.19×3-0.43=
50.6.5×（4.8-1.2×4）=
51.5.8×（3.87-0.13）+4.2×3.74
52.32.52-（6+9.728÷3.2）×2.5
53.[（7.1-5.6）×0.9-1.15] ÷2.5
54.5.4÷[2.6×（3.7-2.9）+0.62]
55.12×6÷（12-7.2）-6
56.12×6÷7.2-6
57.0.68×1.9+0.32×1.9
58.58+370）÷（64-45）
59.420+580-64×21÷28
60.136+6×（65-345÷23）
15-10.75×0.4-5.7
62.18.1＋（3－0.299÷0.23）×1
63.(6.8-6.8×0.55)÷8.5
64.0.12× 4.8÷0.12×4.8
65.（3.2×1.5+2.5）÷1.6
66.3.2×6+（1.5+2.5）÷1.6
67.0.68×1.9+0.32×1.9
68.10.15-10.75×0.4-5.7
69.5.8×（3.87-0.13）+4.2×3.74
70.32.52-（6+9.728÷3.2）×2.5
71.[（7.1-5.6）×0.9-1.15] ÷2.5
72.5.4÷[2.6×（3.7-2.9）+0.62]
73.12×6÷（12-7.2）-6
74.12×6÷7.2-6
75.33.02－（148.4－90.85）÷2.5
1) 76.(25%-695%-12%)*36
77./4*3/5+3/4*2/5
78.1-1/4+8/9/7/9
79.+1/6/3/24+2/21
80./15*3/5
81.3/4/9/10-1/6
82./3+1/2)/5/6-1/3]/1/7
83./5+3/5/2+3/4
84.(2-2/3/1/2)]*2/5
85.+5268.32-2569
86.3+456-52*8
87.5%+6325
88./2+1/3+1/4
2) 89+456-78
3) 5%+. 3/7 × 49/9 - 4/3
4) 9 × 15/36 + 1/27
5) 2× 5/6 – 2/9 ×3
6) 3× 5/4 + 1/4
7) 94÷ 3/8 – 3/8 ÷6
8) 95/7 × 5/9 + 3/7 × 5/9
9) 6/2 -（ 3/2 + 4/5 ）
10) 8 + （ 1/8 + 1/9 ）
11) 8 × 5/6 + 5/6
12) 1/4 × 8/9 - 1/3
13) 10 × 5/49 + 3/14
14) 1.5 ×（ 1/2 + 2/3 ）
15) 2／9 × 4/5 + 8 × 11/5
16) 3.1 × 5/6 – 5/6
17) 4/7 - （ 2/7 – 10/21 ）
18) 19 × 18 – 14 × 2/7
19) 5 × 25/16 + 2/3 × 3/4
20) 4 × 8/7 – 5/6 × 12/15
21) 7/32 – 3/4 × 9/24
22) 1、 2/3÷1/2－1/4×2/5
2、 2－6/13÷9/26－2/3
3、 2/9＋1/2÷4/5＋3/8
4、 10÷5/9＋1/6×4
5、 1/2×2/5＋9/10÷9/20
6、 5/9×3/10＋2/7÷2/5
7、 1/2＋1/4×4/5－1/8
8、 3/4×5/7×4/3－1/2
9、 23－8/9×1/27÷1/27
10、 8×5/6＋2/5÷4
11、 1/2＋3/4×5/12×4/5
12、 8/9×3/4－3/8÷3/4
13、 5/8÷5/4＋3/23÷9/11
23) 1.2×2.5+0.8×2.5
24) 8.9×1.25-0.9×1.25
25) 12.5×7.4×0.8
26) 9.9×6.4-（2.5+0.24）（27） 6.5×9.5+6.5×0.5
0.35×1.6+0.35×3.4
0.25×8.6×4
6.72-3.28-1.72
0.45+6.37+4.55
5.4+6.9×3-（25-2.5）2×41846-620-380
4.8×46+4.8×54
0.8+0.8×2.5
1.25×3.6×8×2.5-12.5×2.4
28×12.5-12.5×20
23.65-（3.07+3.65）
（4+0.4×0.25）8×7×1.25
1.65×99+1.65
27.85-（7.85+3.4）
48×1.25+50×1.25×0.2×8
7.8×9.9+0.78
(1010+309+4+681+6）×12
3×9146×782×6×854
5.15×7/8+6.1-0.60625
1. 3/7 × 49/9 - 4/3
2. 8/9 × 15/36 + 1/27
3. 12× 5/6 – 2/9 ×3
4. 8× 5/4 + 1/4
5. 6÷ 3/8 – 3/8 ÷6
6. 4/7 × 5/9 + 3/7 × 5/9
7. 5/2 -（ 3/2 + 4/5 ）
8. 7/8 + （ 1/8 + 1/9 ）
9. 9 × 5/6 + 5/6
10. 3/4 × 8/9 - 1/3
11. 7 × 5/49 + 3/14
12. 6 ×（ 1/2 + 2/3 ）
13. 8 × 4/5 + 8 × 11/5
14. 31 × 5/6 – 5/6
15. 9/7 - （ 2/7 – 10/21 ）
16. 5/9 × 18 – 14 × 2/7
17. 4/5 × 25/16 + 2/3 × 3/4
18. 14 × 8/7 – 5/6 × 12/15
19. 17/32 – 3/4 × 9/24
20. 3 × 2/9 + 1/3
21. 5/7 × 3/25 + 3/7
22. 3/14 × 2/3 + 1/6
23. 1/5 × 2/3 + 5/6
24. 9/22 + 1/11 ÷ 1/2
25. 5/3 × 11/5 + 4/3
26. 45 × 2/3 + 1/3 × 15
27. 7/19 + 12/19 × 5/6
28. 1/4 + 3/4 ÷ 2/3
29. 8/7 × 21/16 + 1/2
30. 101 × 1/5 – 1/5 × 21
31.50＋160÷40 （58+370）÷（64-45）
32.120-144÷18+35
33.347+45×2-4160÷52
34（58+37）÷（64-9×5）
35.95÷（64-45）
36.178-145÷5×6+42 420+580-64×21÷28
37.812-700÷（9+31×11） （136+64）×（65-345÷23）
38.85+14×（14+208÷26）
39.（284+16）×（512-8208÷18）
40.120-36×4÷18+35
41.（58+37）÷（64-9×5）
42.(6.8-6.8×0.55)÷8.5
43.0.12× 4.8÷0.12×4.8
44.（3.2×1.5+2.5）÷1.6 （2）3.2×（1.5+2.5）÷1.6
45.6-1.6÷4= 5.38+7.85-5.37=
46.7.2÷0.8-1.2×5= 6-1.19×3-0.43=
47.6.5×（4.8-1.2×4）= 0.68×1.9+0.32×1.9
48.10.15-10.75×0.4-5.7
49.5.8×（3.87-0.13）+4.2×3.74
50.32.52-（6+9.728÷3.2）×2.5
51.[（7.1-5.6）×0.9-1.15] ÷2.5
52.5.4÷[2.6×（3.7-2.9）+0.62]
53.12×6÷（12-7.2）-6 （4）12×6÷7.2-6
102×4.5
7.8×6.9＋2.2×6.9
5.6×0.25
8×（20－1.25）
1）127+352+73+44 （2）89+276+135+33
（1）25+71+75+29 +88 （2）243+89+111+57
9405-2940÷28×21
920-1680÷40÷7
690+47×52-398
148+3328÷64-75
360×24÷32+730
2100-94+48×54
51+（2304-2042）×23
4215+（4361-716）÷81
（247+18）×27÷25
36-720÷（360÷18）
1080÷（63-54）×80
（528+912）×5-6178
8528÷41×38-904
264+318-8280÷69
（174+209）×26- 9000
814-（278+322）÷15
1406+735×9÷45
3168-7828÷38+504
796-5040÷（630÷7）
285+（3000-372）÷36
1+5/6-19/12
3x(-9)+7x(-9
(-54)x1/6x(-1/3)
1.18.1＋（3－0.299÷0.23）×1
2.(6.8-6.8×0.55)÷8.5
3.0.12× 4.8÷0.12×4.8
4.（3.2×1.5+2.5）÷1.6 （2）3.2×（1.5+2.5）÷1.6
5.6-1.6÷4= 5.38+7.85-5.37=
6.7.2÷0.8-1.2×5= 6-1.19×3-0.43=
7.6.5×（4.8-1.2×4）= 0.68×1.9+0.32×1.9
8.10.15-10.75×0.4-5.7
9.5.8×（3.87-0.13）+4.2×3.74
10.32.52-（6+9.728÷3.2）×2.5
11.[（7.1-5.6）×0.9-1.15] ÷2.5
12.5.4÷[2.6×（3.7-2.9）+0.62]
13.12×6÷（12-7.2）-6
14.12×6÷7.2-6
15.33.02－（148.4－90.85）÷2.5
1.丽丽和家家去书店买书,他们同时喜欢上了一本书,最后丽丽用自己的钱的5分之3,家家用自己的钱的3分之2各买了一本,丽丽剩下的钱比家家剩下的钱多5块.两人原来各有多少钱?书多少钱?
设丽丽有x元钱 家家有y元钱 得出：
3/5x=2/3y
2/5x=1/3y+5 （丽丽剩下2/5 家家剩下1/3）
解2元一次方程得x=50 y=45 即丽丽50元 家家45元 书30元一本
2.一辆汽车每行8千米要耗油4/5千克,平均每千克汽油可行多少千米.行1千米路程要耗油多少千克?
8除4/5=10（km/)
4/5除8=0.1（kg)
3.一辆摩托车1/2小时行30千米,他每小时行多少千米?他行1千米要多少小时 ?
30÷1/2=60千米 1÷60=1/60小时
4.阅览室看书的同学中,男同学占七分之四,从阅览室走出5位男同学后,看书的同学中,女同学占二十三分之十二,原来阅览室一共有多少名同学在看书?
原来有x名同学,女生数不变,所以（1-4/7）x=（x-5）*12/23
求出x=28
1.125*3+125*5+25*2
2.9999*3+101*11*(101-92)
3.(23/4-3/4)*(3*6+2)
4. 3/7 × 49/9 - 4/3
5. 8/9 × 15/36 + 1/27
6. 12× 5/6 – 2/9 ×3
7. 8× 5/4 + 1/4
8. 6÷ 3/8 – 3/8 ÷6
9. 4/7 × 5/9 + 3/7 × 5/9
10. 5/2 -（ 3/2 + 4/5 ）
11. 7/8 + （ 1/8 + 1/9 ）
12. 9 × 5/6 + 5/6
13. 3/4 × 8/9 - 1/3
14. 7 × 5/49 + 3/14
15. 6 ×（ 1/2 + 2/3 ）

中太平洋海岭（海底山脉）又名“马库斯—内克海岭”.
地点位于：中太平洋西北部.东起夏威夷群岛的内克岛,经马库斯岛,西到日本的硫黄列岛.长约5300公里,宽达550公里.高出洋底500—1200米.有许多山峰是距洋面1300—1600米的海底火山.

不可以,设一边为x,则另一边为2x,第三边为y,根据三角形性质知：x

两个问题答案都是否定的.
有高于海平面的湖泊,高度也不都用负数表示.

We have sweaters which are cheap.用定语从句

2The plastic frame a color line is mixed in another color line and inserted the wrong
3When the production line in Japan many people help plug wire and line fault insertion.
4 line bit error bad products found, no clear identification and mixed with.

不会打音标……
Unit 1
e-dog
master
year
grade
reading
club
everyone
be born
after
slim
long
music
hard
short
swimming
wear
glasses
enjoy
polite
helpful
hobby
badminton
volleyball
court
football field
swimming pool
swim
eat
fish
Maths
walk
fly
lunchtime
every
day
walking
drawing
always
weekend
usually
run
hour
then
sometimes
often
dinner
grandparent
restaurant
sports
news
score
player
team
member
goal
next
World
age
birthplace
match
well
win
again
really
strong
rubber
borrow
say
understand
start
begin
dark
CD
lots of (= a lot of)
lesson
sport
someone
sound
great
Unit 2
wake
sleep
just
exercise
after-school
activity
homework
supper
because
best
chat
each other
first
spend
library
Tuesday
Friday
practise
swimmer
kind
mail
send
use
Internet
twice
week
model
newspaper
should
much
better
both
together
comic
Thursday
Monday
Wednesday
talk
busy
information
will
trip
each
location
district
price
adult
except
organize
would
closed
look forward
out
maybe
wish
dislike
reason
ready
world
difficult
part
answer
question
clever
Unit 3
celebrate
Halloween
ghost
interesting
dress
as
Monkey King
Christmas
festival
Dragon Boat Festival
Mid-Autumn Festival
Thanksgiving Day
mooncake
October
special
call
trick or treat
knock
shout
candy
treat
if
trick
costume
mask
paint
face
wonderful
pumpkin
lantern
cut
sharp
tooth
chocolate
hot
drink
food
New Year's Day
May Day
Children's Day
Teacher's Day
National Day
card
turkey
rice
rice dumpling
film
holiday
cold
spring
summer
autumn
winter
January
February
March
April
May
June
July
August
September
November
Decembr
Sunday
Saturday
meeting
finish
so
when
why
pencil case
by
fish
train
kitchen
coming
must
money
red packet
lion
midnight
firework
date
place
street
time
excited
west
candle
way
neighbour
light
shine
through
yesterday
warm
Unit 4
hamburger
hungry
energy
never
bowl
vegetable
hate
carrot
healthy
dancer
diet
important
need
easy
tired
keep
fit
seldom
sweet
snack
Coke
between
meal
sugar
fruit
milk
bread
meat
study
top
lifestyle
basketball
fast
change
plan
juice
health
person
power
careful
water
round
lemon
mango
tomato
beef
pork
cabbage
in front of
roller skating
story
potato
shelf
knife
sheep
packet
salt
tea
kilo
carton
buy
grandpa
wow
bottle
noodle
questionnaire
less than
biscui
point
congratulation
partner
overall
lie
couch
feel
luck
supermarket
carry
peanut
amount
calorie
vitamin
soup
without
list
Unit 5
free
wallet
clip
album
sticker
yo-yo
idea
already
shopkeeper
minute
just a minute
cost
quite
expensive
discount
match
pretty
also
enough
Never mind
something
high
wait
electrical shop
bookshop
Walkman
teddy bear
shopping mall
invite
at the moment
visit
turn
ice cream
pay
poor
area
stationery
collect
notebook
writing paper
donate
principal
country
raise
yours sincerely
pair
boot
size
fit
cheap
jeans
skirt
grey
large
note
taxi
taxi rank
centre
however
before
fun
outside
inside
cry
little
Unit 6
fashion
lazy
tie
show
pink
popular
hope
clourful
cool
cotton
young
wool
leather
silk
style
smart
modern
trainer
comfortable
jumper
shorts
suit
heavy
light
boring
afterwards
finally
choose
suitable
be made of
material
design
anyone
poster
still
certainly

good, well
better
best
ill, bad, badly
worse
worst
little
less
least
old
older elder
oldest eldest
many, much
more
most
far
farther
further
farthest (表距离)
furthest (表程度)
late
later
latter
latest (用于时间)
last (用于顺序)
（1）一般情况下,单音节或双音节的形容词（或副词）比较级＋er , 最高级＋est
clever－cleverer－cleverest few－fewer－fewest small－smaller－smallest等
（2）以e结尾的词,比较级＋r,最高级＋st即可
nice－nicer－nicest
cute－cuter－cutest
large－larger－largest
（3）以辅音字母＋y结尾的变y为i＋er或est
easy－easier－easiest
happy－happier－happiest
再如：early , busy , heavy , dirty , lazy . 也如此
（4）双写最后一个辅音字母＋er或est的词同学要用心去记.
1. fat－fatter－fattest
2. thin－thinner－thinnest
3. hot－hotter－hottest
4. red－redder－reddest
5. wet－wetter－wettest
6. big－bigger－biggest
（5）多音节和部分双音节的词需要在形容词原级前＋more构成比较级,＋the most构成最高级. beautiful －more beautiful － the most beautiful .
delicious , popular , important ,
interesting , expensive
双音节的词如
careful－more careful －the most careful
useful －more useful －the most useful .
少数单音节词也是这样如：
pleased－more pleased －the most pleased
tired－more tried －the most tired

铁和过量稀硝酸反应：Fe+4HNO3=Fe(NO3)3+NO（气体）+2H2O
铁过量
3Fe + 8HNO3 === 3Fe(NO3)2 + 2NO + 4H2O

[1+(-1)^n]*n/4

硝酸钙 Ca(NO3)2 摩尔质量 = 40+2*(14+3*16) = 164g/mol
所以一摩尔的硝酸钙有164g

nose、leg、arm、hand、eye、manly

The stars will never belong to the sun is like you never belong to me.

Much homework costs him many time.

　　1、 用我三生烟火,换你一世迷离.
　　2、 我自是年少,韶华倾负.
　　3、 长街长,烟花繁,你挑灯回看,
　　短亭短,红尘辗,我把萧再叹.
　　4、 终是谁使弦断,花落肩头,恍惚迷离
　　5、 多少红颜悴,多少相思碎,唯留血染墨香哭乱冢.
　　6、 苍茫大地一剑尽挽破,何处繁华笙歌落.斜倚云端千壶掩寂寞,纵使他人空笑我.
　　7、 任他凡事清浊,为你一笑间轮回甘堕.
　　8、 寄君一曲,不问曲终人聚散.
　　9、 谁将烟焚散,散了纵横的牵绊.
　　10、 听弦断,断那三千痴缠.坠花湮,湮没一朝风涟.花若怜,落在谁的指尖.
　　11、 山有木兮木有枝,心悦君兮君不知.
　　12、 相忘谁先忘,倾国是故国.泠泠不肯弹,蹁跹影惊鸿.
　　13、 昔有朝歌夜弦之高楼,上有倾城倾国之舞袖.
　　14、 待浮花浪蕊俱尽,伴君幽独.
　　15、 一朝春去红颜老,花落人亡两不知.
　　16、 静水流深,沧笙踏歌；三生阴晴圆缺,一朝悲欢离合.
　　17、 灯火星星,人声杳杳,歌不尽乱世烽火.
　　18、 如花美眷,似水流年,回得了过去,回不了当初.
　　19、 乌云蔽月,人迹踪绝,说不出如斯寂寞.
　　20、 这次我离开你,是风,是雨,是夜晚；你笑了笑,我摆一摆手,一条寂寞的路便展向两头了.
　　21、 天不老,情难绝.心似双丝网,中有千千结.
　　22、 似此星辰非昨夜,为谁风露立中宵.
　　23、 十年生死两茫茫,不思量,自难忘,千里孤坟,无处话凄凉.
　　24、 蝴蝶很美,终究蝴蝶飞不过沧海.
　　25、 终于为那一身江南烟雨覆了天下,容华谢后,不过一场,山河永寂.
　　26、 风华是一指流砂,苍老是一段年华.
　　27、 山河拱手,为君一笑 .
　　28、 几段唏嘘几世悲欢 可笑我命由我不由天.
　　29、 经流年 梦回曲水边 看烟花绽出月圆.
　　30、 雾散,梦醒,我终于看见真实,那是千帆过尽的沉寂.
　　31、 生生的两端,我们彼此站成了岸 .
　　32、 缘聚缘散缘如水,背负万丈尘寰,只为一句,等待下一次相逢.
　　33、 看那天地日月,恒静无言；青山长河,世代绵延；就像在我心中,你从未离去,也从未改变.
　　34、 就这样吧,从此山水不相逢.
　　35、 既不回头,何必不忘.既然无缘,何须誓言.今日种种,似水无痕.明夕何夕,君已陌路.
　　36、 心微动奈何情己远,物也非,人也非,事事非,往日不可追.
　　37、 也许是前世的姻 也许是来生的缘 错在今生相见 徒增一段无果的恩怨.
　　38、 一年老一年,一日没一日,一秋又一秋,一辈催一辈 一聚一离别,一喜一伤悲,一榻一身卧,一生一梦里 寻一夥相识,他一会咱一会 那一般相知,吹一会唱一会.
　　39、 总在不经意的年生.回首彼岸.纵然发现光景绵长.
　　40、 有一种隐忍其实是蕴藏着的一种力量,有一种静默其实是惊天的告白.
　　41、 只缘感君一回顾,使我思君朝与暮.
　　42、 举杯独醉,饮罢飞雪,茫然又一年岁.
　　43、 转身,一缕冷香远,逝雪深,笑意浅.来世你渡我,可愿?
　　44、 一花一世界,一叶一追寻.一曲一场叹,一生为一人.
　　45、 尘缘从来都如水,罕须泪,何尽一生情?莫多情,情伤己.
　　47、 谁应了谁的劫谁又变成了谁的执念.
　　48、 你若撒野 今生我把酒奉陪.
　　49、 人生若只如初见 当时只道是寻常.
　　50、 心有猛虎,细嗅蔷薇.盛宴之后,泪流满面.

梦想在手中放飞,
心情在云中荡漾.
有你的日子,
星星在歌唱.
梦想在天空里飞翔,
心情在日记里成长.
有你的日子,
岁月不再漫长.
梦想在故事里定格,
心情在神话中沉没.
有你的日子,
学会看夕阳.
梦想在寂寞里徘徊,
心情在深夜等待.

补充：【What's】 your sister's 【age】?
What's the age of your sister?

遥想东坡当年,羽扇纶巾,谈笑间,是非成败转头空.人人都道东坡豪放,古今第一,可又有谁知道,夜深人静,午夜梦回时,他思念亡妻竟至潸然泪下,男儿有泪不轻弹,只是未到伤心处.接下来请大家欣赏《江城子 乙卯年正月二十日夜记梦》

孑孓 这俩字么?读jie jue,都是二声,是指孤独,孤单地徘徊的意思

330k欧,误差值2%

读徐志摩的《散文全集》第三卷,所了解的全是徐志摩在感情方面的一些感受,只觉得他是一个多愁善感的有情人.在读第一卷所感受到的是他在思想上的矛盾的一面（是指对现实的失望）.当然,在描写对大自然的赞美时,又表现出了孩子似的惊奇.难怪王亚民在代序中说“志摩是一个单纯的孩子,他与所谓“成人”的区别就在于稚洁、天真.孩子没有稳定的想法和固定的观念,只如天空的一缕轻烟,四向飞飏,随风飘荡而已.”读完这本书,的确有这种感觉.面对世界政治风云的变化他所表现出的无助,迷茫,就可以看到他性格软弱的,消极的一面.但不伦他在现实面前的表现有多么的让人失望,我们都不能抹杀他在写作方面的伟大成就.曾经听有人说过徐志摩的作品不可读之类的话,那时我根本就不知道徐志摩到底是何许人,也从没有接触过他的作品.直到上中专时朋友送了我一本《徐志摩抒情诗选》,我才第一次品尝了他的作品之温柔,之弱美,感受之深,往往让人产生或同情,或怜悯,或忧伤,或释然的感觉.真的是别有一翻情调在其中.他能把他的所想,所感,或喜或悲的感情,用一首或委婉,或动情,或哀怨的小诗表达的淋漓尽致,实在是让人可望而不可及.对他在诗情上称为天才,一点也不过分.对他在思想上来说是一个性格不稳定的天真的孩子,也不是不恰切.

设抛物线方程为2py=x^2则其焦点为（0,-p/2）
一点（-3,m）到焦点的距离为5得到p=8
所以方程为y=x^2/16

150厘米=15分米
60厘米=6分米
装
15x6x6
=540升

Do you know the way to ...
Could you tell me the way to...

1,设原来每天装配y台,则采用新技术后为2y台,则有可列方程6/y+(30-6)/y=3,即未改进技术装配的加上改进技术装配的等于3,解得y=6 2,由两个条件易得人数为50人 设甲船租a条,乙船为b条,则4a+6b=50,甲船平均每人收费为2·5元,乙为2元,在做满的情况下乙船越多越好,当a=2b=7时刚好坐满,而且b取得最大值 3,把右边通分相加得3x-4/(x-1)(x-2)=(A+B)x-(2A+B)/(x-1)(x-2)由于左边等于右边有A+B=3,2A+B=4解出A=1B=2 第四题不算了,夜深了已经三点多了

sin(π+a)csc(π/2-a)=-sina/cosa=-tana=1/2 所以tana=-1/2

这个叫垂心吧
证：过A,B,C分别作对边的平行线,形成△OPQ,且ABC分别在PQ,QO,OP上
因为BC‖QA,AC‖QB
所以ACBQ是平行四边形
因为AC‖BO,AB‖OC
所以ACOB是平行四边形
所以OB=AC=BQ
因为BE是AC边上的高
所以∠EBO=∠AEB=90°
所以BE是△OPQ的垂直平分线
同理,AD,CF也是△OPQ的垂直平分线
三角形的三条垂直平分线是交于一点的
这个道理很简单
设△ABC中,AB,BC边上的垂直平分线相交于O
所以AO=BO,BO=CO
所以AO=CO
所以O在AC的垂直平分线上,即AC边上的垂直平分线也过O
也就是说,三边的垂直平分线交于一点O

2y-2x+1=0
4y-4x+2=0
4y-4x+2＋4x+y-1=0
y=-0.2
x=0.3

ecause [bi'kɔz]
conj.因为

NH3+HNO3 -> NH4NO3
没有条件

文章中父亲,首先是一位慈祥的父亲,对儿子的经历没有指责和批评,而是耐心的指导儿子,指出儿子对工作、对生活上态度的缺陷.另一方面相信父亲同时具有格桑花那样坚韧不拔的毅力与品格,才造就父亲平凡而伟大的一生.
小兵假答!

带某物给某人

再老师那里 快去拿!

⑴∵ΔABC是等边三角形,
∴∠ABC=60°,
∵∠BAD=∠CBE,
∴∠EDF=∠∠BAD+∠ABD
=∠CBD+∠ABD
=∠ABC
=60°.
⑵∵∠BAC=∠ABC=∠ACB=60°,
∠BAC=∠CBE=∠ACF,
∴∠ABD=∠BCE=∠CAF,
∵AB=BC=AC,
∴ΔABD≌ΔBCE≌ΔCAF(SAS),
∴AD=BE=CF,BD=CE=AF,
∴AD-AF=BE-BD,
即DE=DF,
又∠EDF=60°,
∴ΔDEF是等边三角形.

轻风扶细柳,淡月失梅花
近种篱边菊,秋来未著花
长安一片月,万户捣衣声
青枫江上秋帆远,白帝城边古木疏
明月松间照,清泉石上流

我找了一些.如果有用,请自行选择.请勿追问.
祝学习进步.
----------------------------------------------------
Quotations about Time
Clocks slay time... time is dead as long as it is being clicked off by little wheels; only when the clock stops does time come to life. ~William Faulkner
Time is what prevents everything from happening at once. ~John Archibald Wheeler
As if you could kill time without injuring eternity. ~Henry David Thoreau, "Economy," Walden, 1854
Sometimes I feel that life is passing me by, not slowly either, but with ropes of steam and spark-spattered wheels and a hoarse roar of power or terror. It's passing, yet I'm the one who's doing all the moving. ~Martin Amis, Money
The clock talked loud. I threw it away, it scared me what it talked. ~Tillie Olsen, Tell Me a Riddle
Men talk of killing time, while time quietly kills them. ~Dion Boucicault
In reality, killing time is only the name for another of the multifarious ways by which Time kills us. ~Osbert Sitwell
For disappearing acts, it's hard to beat what happens to the eight hours supposedly left after eight of sleep and eight of work. ~Doug Larson
But what minutes! Count them by sensation, and not by calendars, and each moment is a day. ~Benjamin Disraeli
Time goes, you say? Ah no!
Alas, Time stays, we go.
~Henry Austin Dobson
Old Time, that greatest and longest established spinner of all!. his factory is a secret place, his work is noiseless, and his hands are mutes. ~Charles Dickens
Time wastes our bodies and our wits, but we waste time, so we are quits. ~Author Unknown
Time is the fire in which we burn. ~Delmore Schwartz, "Calmly We Walk Through This April's Day," 1937 (Thanks, George)
Tomorrow, and tomorrow, and tomorrow,
Creeps in this petty pace from day to day
~William Shakespeare
You must have been warned against letting the golden hours slip by; but some of them are golden only because we let them slip by. ~James Matthew Barrie
A good holiday is one spent among people whose notions of time are vaguer than yours. ~John B. Priestly
It strikes! one, two,
Three, four, five, six. Enough, enough, dear watch,
Thy pulse hath beat enough. Now sleep and rest;
Would thou could'st make the time to do so too;
I'll wind thee up no more.
~Ben Jonson
The flower that you hold in your hands was born today and already it is as old as you are. ~Antonio Porchia, Voces, 1943, translated from Spanish by W.S. Merwin
It's a strange thing, but when you are dreading something, and would give anything to slow down time, it has a disobliging habit of speeding up. ~J.K. Rowling, "The Hungarian Horntail," Harry Potter and the Goblet of Fire, 2000
Who forces time is pushed back by time; who yields to time finds time on his side. ~The Talmud
Old Time, in whose banks we deposit our notes
Is a miser who always wants guineas for groats;
He keeps all his customers still in arrears
By lending them minutes and charging them years.
~Oliver Wendell Holmes
Time is like the wind, it lifts the light and leaves the heavy. ~Doménico Cieri Estrada
Time is making fools of us again. ~J.K. Rowling
El tiempo da buen consejo. ~Proverb
There is one kind of robber whom the law does not strike at, and who steals what is most precious to men: time. ~Napoleon I, Maxims, 1815
Time is a dressmaker specializing in alterations. ~Faith Baldwin
When told the reason for Daylight Saving time the old Indian said, "Only a white man would believe that you could cut a foot off the top of a blanket and sew it to the bottom of a blanket and have a longer blanket." ~Author Unknown
Why won't they let a year die without bringing in a new one on the instant, can't they use birth control on time? I want an interregnum. The stupid years patter on with unrelenting feet, never stopping - rising to little monotonous peaks in our imaginations at festivals like New Year's and Easter and Christmas - But, goodness, why need they do it? ~John Dos Passos, 1917
How long a minute is, depends on which side of the bathroom door you're on. ~Zall's Second Law
The years like great black oxen tread the world
And God, the herdsman, goads them on behind.
~William Butler Yeats, The Countess Cathleen
Time! the corrector when our judgments err. ~Lord Byron
Time is the coin of your life. It is the only coin you have, and only you can determine how it will be spent. Be careful lest you let other people spend it for you. ~Carl Sandburg
Time is a figure eight, at its center the city of Deja Vu. ~Robert Brault, www.***.com
I am tired of the imposed rhythms of men,
Tethered time, restrained and trained
To a monotonous beat
Digital time blinking exactness
Unliving.
~Phillip Pulfrey, "Conjecture," Beyond Me, www.***.net
If you want work well done, select a busy man - the other kind has no time. ~Elbert Hubbard
Darn the wheel of the world! Why must it continually turn over? Where is the reverse gear? ~Jack London
Time flies on restless pinions - constant never. ~Friedrich Schiller
The Future is something which everyone reaches at the rate of sixty minutes an hour, whatever he does, whoever he is. ~C.S. Lewis
Time is a brisk wind, for each hour it brings something new... but who can understand and measure its sharp breath, its mystery and its design? ~Paracelsus
What then is time? If no one asks me, I know what it is. If I wish to explain it to him who asks, I do not know. ~Saint Augustine
Each moment has its sickle, emulous
Of Time's enormous scythe, whose ample sweep
Strikes empires from the root.
~Edward Young
The inertia hardest to overcome is that of perfectly good seconds. ~Martin H. Fischer
Time is the wisest counsellor of all. ~Pericles
Time is the only thief we can't get justice against. ~Astrid Alauda
There are whole years for which I hope I'll never be cross-examined, for I could not give an alibi. ~Mignon McLaughlin, The Neurotic's Notebook, 1960
The clocks are all turned forward from Funny Time to Right Time. I always remember, "Spring back or Fall in." ~Dave Beard (@Raqhun)
Time is the most undefinable yet paradoxical of things; the past is gone, the future is not come, and the present becomes the past even while we attempt to define it, and, like the flash of lightning, at once exists and expires. ~Charles Caleb Colton
Time is what we want most, but... what we use worst. ~Willaim Penn
Time is the longest distance between two places. ~Tennessee Williams
Among life's regrets is all the time wasted being early for everything. ~Robert Brault, www.***.com
Can an afternoon revert? ~Carrie Latet
Pick my left pocket of its silver dime, but spare the right - it holds my golden time! ~Oliver Wendell Holmes
Man goes nowhere. Everything comes to man, like tomorrow. ~Antonio Porchia, Voces, 1943, translated from Spanish by W.S. Merwin
Whether we wake or we sleep,
Whether we carol or weep,
The Sun with his Planets in chime,
Marketh the going of Time.
~Edward Fitzgerald
For centuries, man believed that the sun revolves around the earth. Centuries later, he still thinks that time moves clockwise. ~Robert Brault, www.***.com
Time, the cradle of hope. Wisdom walks before it, opportunity with it, and repentance behind it: he that has made it his friend will have little to fear from his enemies, but he that has made it his enemy will have little to hope from his friends. ~Charles Caleb Colton
Time is but the stream I go a-fishing in. ~Henry David Thoreau
The Present is a Point just passed. ~David Russell
Methinks I see the wanton hours flee,
And as they pass, turn back and laugh at me.
~George Villiers
Time is an equal opportunity employer. Each human being has exactly the same number of hours and minutes every day. Rich people can't buy more hours. Scientists can't invent new minutes. And you can't save time to spend it on another day. Even so, time is amazingly fair and forgiving. No matter how much time you've wasted in the past, you still have an entire tomorrow. ~Denis Waitely
Much may be done in those little shreds and patches of time which every day produces, and which most men throw away. ~Charles Caleb Colton
One must learn a different... sense of time, one that depends more on small amounts than big ones. ~Sister Mary Paul
Day, n. A period of twenty-four hours, mostly misspent. ~Ambrose Bierce
Time is a great teacher, but unfortunately it kills all its pupils. ~Louis Hector Berlioz
Let not the sands of time get in your lunch. ~Tony Hendra, "Deteriorata" (Thanks Tom)

正若白乐天《养竹记》所云

是的.

(1x2x3+7x14x21)/ (1x3x5+7x21x35)
=[1x2x3+(7x7x7)x1x2x3]/ [1x3x5+(7x7x7)x1x3x5]
=[(1x2x3)x(1+7x7x7)]/ (1x3x5)x(1+7x7x7)
=(1x2x3)/(1x3x5)
=2/5
或者写成分式：
1x2x3+7x14x21
————————
1x3x5+7x21x35
1x2x3×(1+7)
= ——————
1x3x5×(1+7)
1x2x3
= ———
1x3x5
= 2/5