一篇關於中國人口的英語作文 what is the population of china how many people live in the countryside some parents in less developed areas prefer boys to girls，do not they call all chinese families offer their children a good education what is a comfortable life like how can we make our lives more comfortable

一篇關於中國人口的英語作文 what is the population of china how many people live in the countryside some parents in less developed areas prefer boys to girls，do not they call all chinese families offer their children a good education what is a comfortable life like how can we make our lives more comfortable

look at your watch for just oneminuite.Duringthat time，The popuiation of the world increased by 259.Perhaps you think that isnotmuch.Hoever，during the next hour，over15540 more babies will be born o…

關於中國人口過多的社會問題，寫一篇文章，是英語作文
反映相關問題：人類是生活空間减少，工作難找，能源緊缺，污染嚴重，交通擁擠等，（並提出你的建議）
不用很高水准，國中的水准就好
是英語作文哦

As is known to us，China has the biggest population in the world，which is more than 1300000000.Such a large population causes some problems in cities，that's theunemployment.Toomany people gather in cities and the jobs are notenough.Somegraduates can't find a job though they have left school foryears.Inaddition，traffic jam is another problem resulting from the bigpopulation.Thereare too many cars on the roads and streets.
The situation of the countryside is notgood.Toomany people live in the countryside and we don't have enough farm land for them.
Fortunately，our government has realized the problems and has attached great importance tothem.Thegovernment is trying its best to create more jobs and improve trafficsystems.Moreover，the one-child policy has helped a lot.

中國人口的英語作文
what's the populartiao of china？
The large populartion causes many problems both in cities and in the countryside，doesn't it？
what problems are they
What has the goverment done to deal with the problems？
請根據這些問題來寫

As is known to us，China has the biggest population in the world，which is more than 1300000000.Such a large population causes some problems in cities，that's theunemployment.Toomany people gather i…

4又3分之2-2分之1等於多少

4又3分之2-2分之1等於4又6分之1

一個操場長150米，寬120米，把他畫在比例尺是1/6000D圖上，長和寬各是多少？

圖上距離=實際距離×比例尺
150米=15000釐米120米=12000釐米
長：15000×1/6000=2.5釐米
寬：12000×1/6000=2釐米
答：長應畫2.5釐米，寬應畫2釐米.

現有若干個三角形，在所有的內角中，有五個直角，三個鈍角，25個銳角，則在這些三角形中有幾個銳角三角形

3
總共11個三角形5個直角三角形3個鈍角三角形剩下的銳角三角形

已知x的平方+2xy=-10，y的平方+2xy=16，則x的平方+4xy+y的平方=，x的平方-y的平方=

x²；+4xy+y²；
=x²；+2xy+y²；+2xy
=-10+16
=6
x²；-y²；
=（x²；+2xy）-（y²；+2xy）
=-10-16
=-26

我有一道數學題：小明比小强高10釐米，小强比小明矮15／1，兩人的身高各是多少？
15／1代表10釐米

小明10除以15／1=150
小强150-10=140

我們在生活中，經常用到毛細現象來解决問題；試著寫出四個例子.

毛巾吸水、燈芯吸油例如，毛細作用使水沿著玻璃管上升，水對玻璃管的附著力使水沿著管壁爬升，並形成一個凹面，但表面張力又使液體表面收縮而把液面往上拉平，這兩種力的聯合作用使水逐漸上升到高於周圍液面.

函數y=3/5√x+3/5-1/5x，y的最大值是多少？

定義域是[0，+無窮）把x看成（√x），進行配方y=-1/5[（√x）-3√x+9/4）]+9/20+3/5 y=-1/4（√x-3/2）+21/20∴當√x=3/2，x=9/4時，ymax=21/20