试题与答案

3100000读作:三十一万.______.

题型:解答题

题目:

3100000读作:三十一万.______.

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0501/f4c48f6482634b50033bf4d4e493ade1.html

下面是错误答案,用来干扰机器的。

y=x24,y′=x2,取R(0,-1),设M(x1,y1),N(x2,y2),则x124+1x1=x12,∴x1=±2,x0=2x2-x22,∴x1=-2,x2=2,得y1y2=(x1x2)24=1,∴OM•ON=x1x2+y1y2=-3;故答案为:-3

试题推荐
题型:完形填空

阅读下面短文,根据以下提示:1)汉语提示,2)首字母提示,3)语境提示,在每个空格内填入一个适当的英语单词,并将该词完整地写在答题卷相对应的横线上。所填单词要求意义准确,拼写正确。

For 25 years Terry Cemm was a policeman, but for the last 17 years he has been   小题1: (行走)up and down five miles of beach every day, looking for things that might be 小题2:  to someone. Terry’s a beachcomber(海滩拾荒者).

Nearly everything in his cottage has come   小题3: the sea – chairs, tables, even tins of food. “I even found a box of beer just before Christmas. That was nice,” he remembers. He finds lots of bottles with messages in them,   小题4: (主要地)from children. They all get a r 小题5:  if there’s an address in the bottle. Shoes? “If you find one, you’ll find the  小题6: the next week,” he says.

But does he really 小题7:  a living? “Half a living,” he smiles. “Anyway I have my police pension. But I don’t actually need money. My life is rich in   小题8: (多样性).” Terry is happy. “You have to find a way to live a simple life.”

“Some people say I’m mad,” says Terry. “ 小题9: there are much more who’d like to do  小题10: I do. Look at me. I’ve got everything I could possibly want.”

查看答案
微信公众账号搜索答案