p40页的,如果爱孩子,就让他做一只鸟...

你把题发上来呀.

（1）
S=5x10-5x5x3.14÷2=10.75（平方厘米）
c=10x3.14÷2+10+5+5=35.7（cm）
（2）
S=(5x5x3.14-2x2x3.14-3x3x3.14)÷2=18.84（平方厘米）
c=10x3.14÷2+4x3.14÷2+6x3.14÷2=314(cm)

1要先把显微镜的外表擦拭干净.镜头要用柔软的擦拭纸进行擦拭
2转动转化器,把两个镜头偏到两旁,反光镜竖立,将镜筒缓缓降到最低处
3经显微镜放到镜箱里

改正错别字
轻歌曼舞 无微不至 迎接不暇 .欢欣鼓舞 各抒己见 平易近人 盛气凌人 兴高采烈
成语谜
异口同声--- 混为一谈
不寒而栗--- 乐在其中
四面楚歌--- 人自为战
坐井观天--- 一孔之见
包罗万象--- 面面俱到
量体裁衣--- 以身作则
揠苗助长--- 不能自拔
借尸还魂--- 死去活来
邯郸学步--- 手足无措

你是?高欣怡?

设：成年人一天所需钙质为 X.
成年人一天所需钙质乘 3/8,等于一杯牛奶所含钙质3/10g.
3/10 = X * 3/8
X=8/10
X=4/5 g

先把题目贴出来!

(1)s= (cm2)
(2)当t=5s时,CR=3,设PR与DC交于点G,过点P 作P⊥l 于E点,
由△RCQ ∽△REP→S △ROG= S=12 - = (cm 2)
(3)当5s≤t≤8s时,QB=t-5,RC=8-t.设PQ交AB于点H．
由△QBH∽△QEP→S△QBH=（t-5）2．
由△RCG∽△REP→S△ROG=（8-t）2．
∴S=12- (t-5)2-（8-t）2
即S= -t+t-． 当t=时,s最大,最大值为 (cm2)．

我想应该和校章差不多,找一张卡片,贴上照片,并在旁边写上SCHOOL ：XXX NAME：XXX
GRADE X CLASS X

chant 意思是朗诵,咏唱
vt. 吟颂,咏唱;反复有节奏地喊叫（或唱等）
n. 咏唱,咏唱的话语

x/(y+1)=1/3
(y+1)/x=3
∴(Y+1/X)²+2x/(y+1)+6
=3²+2/3+6
=15+2/3
=15又2/3

The British isles is made up of two large islands①:One is called Ireland and the other 1 .Britain,or Great Britain,is the larger of these two islands,and it is 2 into three parts:Scotland ,Wales and England.
　　The United Kingdom is that 3 of the British isles ruled over by the Queen.It is made up of Scotland,Wales and England,that is,the 4 of Britain,and also about onesixth of Ireland,the Northern part.The 5 of Ireland is selfgoverning.The 6 name of the United Kingdom is 7 “The United Kingdom of Great Britain and Northern Ireland”.
　　8 is larger and richer than Scotland,Wales and Northern Ireland,and has the most 9 of the United Kingdom,so people often use the 10 “England” and “English” when they 11 “Britain” and “British”.This sometimes makes the Scots and the Welsh a little 12 .The Scots in particular are very 13 of their separate nationality.The Welsh too do not regard 14 as English,and have a culture and even a 15 of their own.
　　Ireland became part of the United Kingdom in 1801,but for forty years the “Irish 16 ” was the greatest headache of the United Kingdom.17 ,Ireland is divided into two:Northern Ireland still 18 to the United Kingdom,and in 1922 the rest of Ireland 19 to found an Irish Free State,later called Eire and now the Republic of Ireland.
　　The Republic of Ireland does not regard itself as part of Britain②,and is not now even a supporter of the Commonwealth of Nations (英联邦).Unlike the major Commonwealth countries it did not lift a finger to 20 British in the Second World War and now wants the whole of Ireland to be a republic.收起

魔法女巫sky ：
（1）
1-1/2²＝1-1/4
（1+1/3）×（1-1/3）＝1-1/3²
（1+1/4）×（1-1/4）＝1-1/4²
（1+1/2）×（1-1/2）＝1-1/2²
（2）
（1-1/2²）×（1-1/3²）×（1-1/4²）……（1-1/100²
＝3/4×8/9×15/16……×9999/10000
祝好,再见.

找15的倍数,且比60大,比100小

异口同声 混为一谈
不寒而栗 乐在其中
四面楚歌 人自为战
坐井观天 一孔之见
包罗万象 面面俱到
量体裁衣 以身作则
揠苗助长 不能自拔
借尸还魂 死去活来
邯郸学步 手足无措

√18-3.141592654...=1.10
2/3+ ³√5=3.21

以松柏象征坚贞.松枝傲骨峥嵘,柏树庄重肃穆,且四季长青,历严冬而不衰.《论语》赞曰：岁寒然后知松柏之后凋也.松与竹、梅一起,素有“岁寒三友”之称.文艺作品中,常以松柏象征坚贞不屈的英雄气概.
桃李：指培养的后辈或所教的学生.
桑梓指家乡、故乡,古代,人们喜欢在住宅周围栽植桑树和梓树,后来人们就用物代处所,用“桑梓”代称家乡.赞扬某人为家乡造福,往往用“功在桑梓”.
芝通芷,芝兰是蕙芷的简称 　　古时比喻德行的高尚或友情、环境的美好等.如：芝兰之室.②比喻优秀子弟：芝兰有秀；芝兰重茂.参见“芝兰玉树”.

【蒙 古 】
【 巴 西】
【 班 】
【 牙 买 加】
【 拿 】
【 大 】