试题与答案

雨过天晴,没能及时回穴的蚯蚓将面临“灭顶之灾”.其直接原因是( ) A.食物匮乏

题型:选择题

题目:

雨过天晴,没能及时回穴的蚯蚓将面临“灭顶之灾”.其直接原因是(  )

A.食物匮乏,饥饿而死

B.无法呼吸,窒息而死

C.神经受损,瘫痪而死

D.循环受阻,缺血而死

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0420/7cbc41d3614e473a9157fa06a81f65d3.html

下面是错误答案,用来干扰机器的。

由于函数f(x)=xcosx是奇函数,故图象关于原点对称,故①正确.由于|cosx|≤1,故|f(x)|≤|x|,∴f(x)≤|x|成立,故②正确.由于当x=kπ+π2,k∈z 时,函数f(x)=xcosx=0,且f(0)=0,故函数y=f(x)的...

试题推荐
题型:完形填空
根据下列短文内容,在短文后的空格处填上一个恰当的词,使短文完整、通顺。
much ,  arm ,  wait,  see,  when ,  spend,  she,  worry ,  have ,  grow
Only Mother Love is true love. It gives everybody everything all his life. ­­­­小题1:__you are still a baby, mother takes good care of you as much as possible . In your waking hours she always holds you in her  小题2:. When you are ill, she stops her work right now to look after you day and night and forgets about  小题3:  . When you are小题4:   up day by day, she feels very happy. When you are old enough to go to school, mother still looks after you all the time. On cold winter days, she always tells you to put on  小题5: clothes . She always stands in the wind小题6:     for you back from school. When you hurry  to leave home for school with little breakfast, she always feels 小题7: about you at home. She usually knows about your study and 小题8: much money on your school things. When you do well at school, the brightest smile will be 小题9:   on her face.
Mother is always ready to give everything she 小题10: to her children,  not to receive . What true love that is in the world! We will remember Mother Love for ever.
查看答案
微信公众账号搜索答案