绕道好望角到西欧和（ ）各国一条航线绕过好望角去什么地方啊,是非洲还是美洲?就一个 从马六甲向西（绕好望角，达西欧和什么

以下两种都是正确的但更普遍的是 2 ：
1 This river has the same length as that one.(有着)
2 This river is the same length as that one.（是）
也可以是：
The two rivers are the same in length.
The two rivers are (of) the same length
The two rivers are of a length

1、你老师说的是对的,NO确实以氧化性为主.
理由：N是非金属性很强的元素,O也是非金属性更强的元素,两种非金属性很强的元素形成的化合物也应该体现氧化性.当然,还有非金属性比这两种元素更强的,当然也能找到合适的氧化剂来氧化它,所以NO也可以作还原剂.
2、2NO + O2 = 2NO2和2NO + F2 = 2NOF中,NO都是还原剂；
3、但浓硫酸不能氧化NO,因为浓硫酸的氧化性还不够强；
4、2NO + 2H2 = N2 + 2H2O、4NO + CH4 = 2N2 + CO2 + 2H2O中,NO都是氧化剂.

解题思路：本题考查的是动物的绕道取食行为，首先明确动物的绕道取食行为属于学习行为．

动物的学习行为是在遗传因素的基础上，通过环境因素的作用，由生活经验和学习获得的．不同的动物，学习能力是不同的．一般来说，动物越高等，形态结构越复杂，学习行为就越复杂．反之，动物越低等，形态结构越简单，学习行为就越简单，尝试与错误的次数就越多．学习行为是在先天性行为的基础上形成的，能使动物更好的适应不断变化的环境．
故选：A

点评：
本题考点： 探究动物的绕道取食．

考点点评： 关于动物的学习行为是考查的重点，可结合着先天性行为和学习行为的概念理解

B

1、上课认真听课,放学认真预习功课
2、独立完成自己的作业
3、不会的地方要问老师或者同学
4、合理安排好学习时间
5、注意课堂听讲效率
6、对前阶段的学习进行反思,意识到哪些不足
7、对下一阶段的学习规划,例如那门课着重学习,还可以写下分数目标
8、积极回答问题,说普通话,声音洪亮,让全体学生都听到；别人回答问题时,自觉反思自己掌握情况.敢于发表见解,积极参与课堂讨论,讨论声音要轻,以本组同学听到为宜.大胆质疑,不懂就问,主动向老师或同学请教,不留知识盲点.做好课后能起到复习作用的听课笔记,主要记录知识要点、重点、疑难问题、听课体会.
望采纳,这是我初一的时候制定的自我目标.至今还在用,祝你学习天天向上!

so easy come on

假设去的时候路程是S
7.5min=0.125H
（S+3）/16-S/15=0.125
解得S=15 KM
单位得化成统一的

The ending is unexpected,the former sympathy now turns into pressure.

我的小学时期过得非常快乐.虽然我的成绩并不好,但我还是觉得那些日子真的很精彩很棒.当我还是个小学生的时候,我拥有很多的时间,但是现在我要起得早,留在学校一整天,每天还有很多的功课要完成.不过课外的活动都让我很快乐.因为学校里有举办很多的活动.有学校体育队,篮球队,歌唱比赛等等.我都非常的喜欢.
我的高中时光是非常多姿多彩的.我很课上我很努力的学习,但下课了,我喜欢享受音乐,画画,还有和朋友闲聊.
学校的十年周岁
我在一个很美丽的学校学习,第九号学校.它是一个很年轻的学校.但是却拥有上千的学生.上百个面带着笑容毕业的毕业生.好啦,第十年的学校周年纪念日即将到来了.那天,大部分的同窗好友/校友们都会回到学校.我们将会很快乐.我们的学校会变得更加美丽可爱.我要对我的学校说“生日快乐”!

告诉家长处理,现在你们还小,最好不好自己处理

1.假设去的路程为x千米 返回用时间y小时
x+3=16y
y=[(x/15)+(7.5/60)]
把y代入1式
60x+180=64x+120
4x=60
x=15
y=1+0.125=1.125小时=67.5分钟
去的路程为15千米,返回时用的时间67.5分钟
2.假设火车速度为x米/秒,火车长y米
1000-y=x*40
1000+y=x*60
2000=100x
x=20
y=1000-800=200
所以火车速度20米每秒,长度200米

这个,列微分方程啊…这个是第二型人口模型,想起当年数学建模的日子…等等,我去找草稿纸
设s(t)为细菌数,k为细菌增长速度
ds(t)=ks(t),s(4)=2s(0),求s(12),只能化成这个方程了,不能解吗?
去高等数学吧提问,有很多高手,我也在那里混

D

本题考查保护环境的理解，难度一般。我们要爱护自己和他人的生命，还要爱护地球上的其他生物，与大自然和睦相处。故①③④符合题意，而②不是材料给我们的启发，与题意无关，故选D。

解题思路：可根据“去的时候所用时间+[9/60]=回来的时候所用时间”，设去的路程为x千米，则回来的时候所走路程为x+3，根据时间=[路程/速度]，分别用关于x的关系式表示出来、回所用时间，列出等量关系求出x的值即可．

设去的路程为x千米，
则：[x/15+
9
60＝
x+3
16]
解得：x=9．
答：去的时候路程为9千米．

点评：
本题考点： 一元一次方程的应用．

考点点评： 本题主要考查一元一次方程的应用，根据题意找出等量关系列出方程求解，用到的知识点有：时间=[路程/速度]．

虽然没分,还是帮你翻翻,也不难.
一个常见的例子是“热机”,它能把热能转换成机械能.这个大家庭包括许多成员,但内燃机是我们大家都熟悉的.尽管它是我们的每一天的生活不可或缺的,但是其能量转换效率却远远低于我们的期望值.典型的汽车发动机的能量转换效率在20%左右.换句话说,一加仑汽油燃烧转换的热能有百分之八十是没有被利用的.尽管一加仑汽油所行驶的里程数在这几年已有所增加,但是从某种程度上讲,机械效率与发动机效率的提升对其里数的提升有着不可忽视的的作用,而两者对其作用是同等的.柴油机效率比较好,但仍然最大的利用效率也只有百分之四十.它的效率的提升从根本上讲是因为柴油机本身的高压缩率以及燃料是在高压情况下被直接注进汽缸顶端.然而汽油机,率压缩是相对有限的,因为燃料必须在压缩冲程前进入气缸.

解题思路：此题考查的知识点是动物先天性行为和学习行为的区别，解答时可以从先天性行为、学习行为的特点方面来切入．

先天性行为是指动物生来就有的，由动物体内的遗传物质所决定的行为，称为先天性行为，例如：蜜蜂采蜜，蚂蚁建巢，蜘蛛织网，鸟类迁徙等，先天性行为是动物的一种本能行为，不会丧失．
学习行为是动物出生后通过学习得来的行为．动物建立学习行为的主要方式是条件反射．参与神经中枢是大脑皮层不是与生俱来的而是动物在成长过程中，通过生活经验和“学习”逐渐建立起来的新的行为．公鸡绕道取食行为、黑猩猩用树枝钓取白蚁，是通过学习和生活经验的积累得来的行为，属于学习行为；蜘蛛结网、大雁南归、菜青虫取食白菜等蔬菜，是生来就有的，不学就会的，由体内的遗传物质所决定的先天性行为．
故选B．

点评：
本题考点： 动物的先天性行为和学习行为的区别．

考点点评： 解答此类题目的关键是理解动物行为获得途径和特点．

苏伊士运河不能经过大吨位级油轮,所以还是得绕好望角

Yesterday was Sunday and it was fine.I ,with my classmates had a good time in a park.
at7:30 am,we went out by bike.On the way to park,we had a delicious breakfast in a restaurant.Then we reached the park.some people were playing football,some were playing badminton,and others were dancing.there are also many girls chatting under a tree.I took part in playing badminton.i was extremely happy and i made a new friend.
it was really a beautiful day.

如果d达到了置信域的边界,成对的带║dk║

解题思路：设去时所走的路程为x千米，则去时所用时间为[x/5]，回是所用时间为[x+2/4]，然后根据来回包括停留时间列等量关系，再解方程即可．

设去时所走的路程为x千米，
根据题意得[x/5]+1+[1/2]+[x+2/4]=6[1/2]，
x=10．
答：去时所走的路程为10千米．

点评：
本题考点： 一元一次方程的应用．

考点点评： 本题考查了一元一次方程的应用：首先审题找出题中的未知量和所有的已知量，直接设要求的未知量或间接设一关键的未知量为x，然后用含x的式子表示相关的量，找出之间的相等关系列方程、求解、作答，即设、列、解、答．

设去时路程为x千米
去时的速度是5千米/小时,故去时所花时间为x/5=0.2x小时
返回时的路程为(x+2)千米
返回时的速度是4千米/小时,故返回时所花时间为(x+2)/4=(0.25x+0.5)小时
另外在A处停留1小时,在B处停留0.5小时
总共在外时间为[0.2x+(0.25x+0.5)+1+0.5]小时
所以有0.2x+(0.25x+0.5)+1+0.5=6.5
解方程可得x=10
答：去时路程为10千米

给您发去了，供参考。哪里意思不妥，请予指正。

①行人绕道,花草含笑.
②爱护花草,彰显文明.
③行人文明,花草含笑.

I am a man with mask.What is the use to ask another person who also wearing mask?

1—2=—1
3—4=—1
.
2007-2008=—1
所以原式=-1+(-1)+(-1)+.+(-1)
总共有1004项,所以答案为（-1）*1004=—1004

A：动物的学习行为是在遗传因素的基础上，通过环境因素的作用，由生活经验和学习获得的．不同的动物，学习能力是不同的．一般来说，动物越高等，形态结构越复杂，学习行为就越复杂．反之，动物越低等，形态结构越简单，学习行为就越简单，尝试与错误的次数就越多．因此并不是选择的实验动物越大越好，故该项不正确．
B：蚯蚓呼吸的是空气中的氧气．氧气先溶解在体壁的粘液里，然后渗透到体壁内的毛细血管中的血液里，血液中的二氧化碳也通过体壁排出体外．因此蚯蚓是用湿润的体壁进行呼吸的．所以，我们用手触摸蚯蚓体壁，感觉到体表有黏液．故该项正确．
C：观察小鱼尾鳍内血液流动的实验主要观察的是动脉、静脉和毛细血管，以及其内血液的流动情况，不需要观察细胞的结构等内容，用低倍显微镜即可观察清楚，同时血液的颜色稍深，光线稍显弱，低倍镜镜头上的孔较大，通过的光线多，因此此实验适合用低倍镜．故该项正确．
D：“十字花科植物”与“非十字花科植物”为实验的唯一变量，而环境中的其他所有因素实验组与对照组都要尽量相同，如实验的材料、时间和地点．为了避免或减少其他因素对探究的干扰，保证探究的严谨有效．故该项正确．
故选：A

同温同压下,两物质的密度比就等于这两个物质的相对分子质量之比
PV=nRT 可推出 PV=mRT/M 继续推导可得 PM=mRT/V= ρRT
所以同温同压下密度之比等于相对分子质量之比

DO

去时路程：X，返回时时间：Y
7.5min=0.125h
X/15=Y-0.125
(X+3)/16=Y
X=18.2
Y=1.1375

自私
顽固
吝啬
傲娇
自负
自卑
内向
高傲
狡猾
悲观
脆弱
粗心
蛮横
虚假

I have been waiting for you for the whole day.

How do you get to the shopping centre?

原式=(0.04)的2013次方×[（25）2】的1007次方=(0.04)的2013次方×25的2014次方=(0.04×25)的2013次方×25=1的2013次方×25=25

Do you like spring or winter?

巴拿马运河位于北美洲和南美洲中间,沟通太平洋和印度洋.巴拿马运河的开通,使美洲中段地区航运距离大大缩短,不必绕道南美洲南段的麦哲伦海峡.

060409000
800001000
000000009
004000003
100000000
000010000
000040002
000000000
000900400

是一种学习行为.属于后天性学习行为 !取食是先天的行为,而绕道取食涉及到一个方法问题,有一定的逻辑性,这是经验的积累,有学习的过程,故属于后天性学习行为!
有一个试验的结论：
大公鸡对于如何获取食物已经具有一定经验,而小公鸡很多学习行为还没有建立,它更能表现出学习行为的建立过程.

翻译分别如下：According to the results of research which had been published,the connection between gene X and the risks of cancer morbidity was contradictory.However,the connection between gene A(or B)and the probabilities of cancer morbidity was still uncertain.
Methods:In order to know better about the effects among the genes A and B and the occurrence rate of global cancers.
These results of research made it clear that there was no prominent connection between the cancer morbidity and the genes A（and B）,and this kind of phenomenon also indicated function X as a node that needed to be verified or combined with functional researchs.
The cancer is the worldwide problem of public health and it is one of the uppermost deadly reasons.However,due to all kinds of reasons,it is very difficult to discern the susceptibility genes.
The obesity has been found that it could increase the probabilities of cancer morbidity.
And there was an evidence indicating that it might play a vital role in the occurrence and development of human cancers.
Therefore,the connection between genes A and B and cancers needed to be investigated further.
During the investigation,the former investigation report between genes A(and B) and all of the cancers was analysed synthetically.
In conclusion,as what form 2 shows.When we put the all of the qualified researchs into the analysis of Meta,we observed that genes A and B didn`t have any occurrence rate which would have an effort on cancers.
And on the basis of the specific cancers,different races,different types of resources,different methods of checking and different sizes of sample plate,we evaluated the polymorphism of genes A and B in order to draw a valid conclusion which was about the potential connection between genes A and B and the occurrence rate of cancers.
From the clue of epidemiology,it showed that the overweight and the obesity would increase the risks of cancers.

度数=75°+180°-155°
=75°+25°
=100°

The network nowadays seems to be in control of the students.There're a number of questions to be answered in class.You should try to remember as many words as possible if you want to learn English wel...

CO3 2- SO4 2- NO3 2- OH- NH4+,给个采纳呗,谢啦!

Do not step on grass.
春来小草醒这一类的话,外国人看了只会觉得好笑.真的,不用照翻.

设 路程为X千米 则 X/15=(X+3)/16-7.5/60 解得X=15
返回时间 （15+3）/16=67.5分钟

答案为D
设周长为2L
第一次相遇甲跑 L-100 【跑半圈相遇】
第二次相遇以后 甲每次都跑 2L-60-(L-100)=L+40 【跑整圈相遇】
所以
12次相遇则
L-100+(L+40)*11=12L+340

s/10+(s+4)/8+1+0.5=6.5
s=20千米

please help me to handle this.

因为明天有雨,所以运动会改期.
如果明天有雨,运动会就改期.
只有明天有雨,运动会才改期.
用适当的关联词语把 “明天有雨” 和 “运动会改期”连成三句话,并不排除把关联词插入其中.“不要中间插一个字”,应该不包含关联词.“如果明天有雨,就运动会改期.”“只有明天有雨,才运动会改期.”恐怕不符合现代汉语表示习惯,你认为呢?

I’ve been getting a LOT of calls lately from PR people.
PR 还可指 public relations 公共关系
在一些证件上面常出现CHINA PR,强调的是People's Republic of China.

Spring FestivalThe Spring Festival is the most important festival for the Chinese people and is when all family members get together, just like Christmas in the West. All people living away from home go back, becoming the busiest time for transportation systems of about half a month from the Spring Festival. Airports, railway stations and long-distance bus stations are crowded with home returnees.
The Spring Festival falls on the 1st day of the 1st lunar month, often one month later than the Gregorian calendar. It originated in the Shang Dynasty (c. 1600 BC-c. 1100 BC) from the people's sacrifice to gods and ancestors at the end of an old year and the beginning of a new one.
Strictly speaking, the Spring Festival starts every year in the early days of the 12th lunar month and will last till the mid 1st lunar month of the next year. Of them, the most important days are Spring Festival Eve and the first three days. The Chinese government now stipulates people have seven days off for the Chinese Lunar New Year.
Many customs accompany the Spring Festival. Some are still followed today, but others have weakened.
On the 8th day of the 12th lunar month, many families make laba porridge, a delicious kind of porridge made with glutinous rice, millet, seeds of Job's tears, jujube berries, lotus seeds, beans, longan and gingko.
The 23rd day of the 12th lunar month is called Preliminary Eve. At this time, people offer sacrifice to the kitchen god. Now however, most families make delicious food to enjoy themselves.
After the Preliminary Eve, people begin preparing for the coming New Year. This is called "Seeing the New Year in".
Store owners are busy then as everybody goes out to purchase necessities for the New Year. Materials not only include edible oil, rice, flour, chicken, duck, fish and meat, but also fruit, candies and kinds of nuts. What's more, various decorations, new clothes and shoes for the children as well as gifts for the elderly, friends and relatives, are all on the list of purchasing.
Before the New Year comes, the people completely clean the indoors and outdoors of their homes as well as their clothes, bedclothes and all their utensils.
Then people begin decorating their clean rooms featuring an atmosphere of rejoicing and festivity. All the door panels will be pasted with Spring Festival couplets, highlighting Chinese calligraphy with black characters on red paper. The content varies from house owners' wishes for a bright future to good luck for the New Year. Also, pictures of the god of doors and wealth will be posted on front doors to ward off evil spirits and welcome peace and abundance.
The Chinese character "fu" (meaning blessing or happiness) is a must. The character put on paper can be pasted normally or upside down, for in Chinese the "reversed fu" is homophonic with "fu comes", both being pronounced as "fudaole." What's more, two big red lanterns can be raised on both sides of the front door. Red paper-cuttings can be seen on window glass and brightly colored New Year paintings with auspicious meanings may be put on the wall.
People attach great importance to Spring Festival Eve. At that time, all family members eat dinner together. The meal is more luxurious than usual. Dishes such as chicken, fish and bean curd cannot be excluded, for in Chinese, their pronunciations, respectively "ji", "yu" and "doufu," mean auspiciousness, abundance and richness. After the dinner, the whole family will sit together, chatting and watching TV. In recent years, the Spring Festival party broadcast on China Central Television Station (CCTV) is essential entertainment for the Chinese both at home and abroad. According to custom, each family will stay up to see the New Year in.
Waking up on New Year, everybody dresses up. First they extend greetings to their parents. Then each child will get money as a New Year gift, wrapped up in red paper. People in northern China will eat jiaozi, or dumplings, for breakfast, as they think "jiaozi" in sound means "bidding farewell to the old and ushering in the new". Also, the shape of the dumpling is like gold ingot from ancient China. So people eat them and wish for money and treasure.
Southern Chinese eat niangao (New Year cake made of glutinous rice flour) on this occasion, because as a homophone, niangao means "higher and higher, one year after another." The first five days after the Spring Festival are a good time for relatives, friends, and classmates as well as colleagues to exchange greetings, gifts and chat leisurely.
Burning fireworks was once the most typical custom on the Spring Festival. People thought the spluttering sound could help drive away evil spirits. However, such an activity was completely or partially forbidden in big cities once the government took security, noise and pollution factors into consideration. As a replacement, some buy tapes with firecracker sounds to listen to, some break little balloons to get the sound too, while others buy firecracker handicrafts to hang in the living room.
The lively atmosphere not only fills every household, but permeates to streets and lanes. A series of activities such as lion dancing, dragon lantern dancing, lantern festivals and temple fairs will be held for days. The Spring Festival then comes to an end when the Lantern Festival is finished.
China has 56 ethnic groups. Minorities celebrate their Spring Festival almost the same day as the Han people, and they have different customs.
I like to study in the library-我喜欢在图书馆读书

Every Sunday morning, I get up at five in order to find a seat in the library. I like the quiet atmosphere in the library, which makes me deeply absorbed in my study. Besides, there are reference books in the library which provide ready guidance to help me solve my problems. At home people come and go--some talking, others working. Inevitably, there are often noises around the house which make me nervous and unable to concentrate on my study. For the reasons mentioned above, I like to study in the library.
第二篇：
It seems that most students like to study in the library, especially when there are examinations. I also like to study in the library. Because of the quiet atmosphere, I can better concentrate on my study. The diligence of other people in the library also inspires me to work even harder. I usually get more by studying in the library. The library is a good place to study only if we observe its rules, such as not talking loudly. Otherwise the value of the library will be greatly reduced.
第三篇：
Generally speaking, a library is a very quiet place. In a library, I can better concentrate and study more effectively. Besides, there are all kinds of books, magazines and newspapers in a library which provide you with a great deal of useful knowledge. The library is a place where your desire for knowledge can be satisfied. Nor can one do research without the help of a library. When I was in college, every semester I Had to write several papers. It was the indispensable library that enabled me to do the necessary research and finish my papers in time. It is difficult to imagine what life would be like without library. We should try to keep our library such a good place that it is by obeying the library rules. We should try to make our library not only a source of knowledge but also a source of inspiration.