题目
China is home to more than 1,000 kinds of birds because the country is large and has almost every weather type to suit them.But not every one knows how to take good care of them.Some cut down trees and destroy the birds’ homes.This has made the num ber of birds go down quickly. A study shows that one out of eight birds,more than 1,200 kinds,in the world could die out.This includes 95 percent of albatrosses(信天翁)and 60 percent of cranes(仙鹤).Some birds you see every day,like pigeons and parrots,are also in danger!To help them,people have set up 7,500 reserves(保护区)which are suitable and safe for the birds.In China,there are big reserves like the ones near Dongting and Poyang lakes. Is there something that you can do for birds?Take care of their homes.Feed them with something delicious.Well,think it over and get going now!根据短文内容,判断正(A)误(B).( )46.There are more than 1000 kinds of birds in China only because China is so large. ( )47.There are too many pigeons and parrots,we can see them every
提问时间:2020-11-25
答案
46.误,还有天气原因.47..误.频危动物;48.误.49,.正;50.正
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
奥巴马演讲不用看稿子.为什么中国领导演讲要看?
想找英语初三上学期的首字母填空练习……
英语翻译
最新试题
- 1121分之77化简
- 2有分式,
- 3已知一条线段作等边三角形,使其边长等于已知线段,则作图的依据是_.
- 4I have a bag with books in it.(“in it” 不能省略)?
- 5求函数f(x)=(1/x+1)+x ,x∈[1,3]值域
- 6已知|A|=5,|B|=4,且A与B的夹角为60度,问当且仅当K取何值时,向量KA-B与A+2B垂直
- 7六年级上册数学练习册第16页思考题怎么做
- 81.定义运算,如果a#b=a+b分之a*b,那么2#10#10=().
- 9__ three years ago.A,since B,for C,about
- 10甲地海拔高度是30m,乙地海拔高度是-10m,哪个地方的海拔高?高多少米?(要有算式)
热门考点
- 1小丽买8个笔记本和8支钢笔共用去88元,小刚买同样的3个笔记本和8支钢笔用去68元,笔记本和钢笔的单价各是多少元
- 2Is this the factory___ I worked?A.how B.where C.which D.what
- 32泉映月课文中的 他爱那美丽富饶的家乡,他爱那.中朗读时要注意那些词?
- 4两船并行前进时好像有一种力量将两船吸引在一起,甚至发生碰撞,请问这种现象如何解释?
- 5神鸟作文350字
- 6用幽静 惬意 奔腾笼罩 身临其境 心旷神怡造句(一段话)
- 7与黄河有关的古诗句并进行赏析(30字左右)
- 8如图1,已知正方形ABCD内一点O,OD=1,OA=2,OB=3,把△OAB绕着点A逆时针旋转90°得到△PAD如图2.(1)求点O到点P的距离.(2)求∠AOD的度数.
- 9关于尊重教师和爱护校园的文章.800字以上的
- 1054:96化简后等于多少