试题与答案

关于世界气候的叙述,正确的是() A.世界各地都有明显的四季变化 B.热带和寒带

题型:选择题

题目:

关于世界气候的叙述,正确的是(   )

A.世界各地都有明显的四季变化

B.热带和寒带地区气候变化剧烈

C.各地气候分布都没有规律可循

D.当今气候变暖与人类的活动有关

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0519/5c173381b9399151136e180e0f3b1358.html

下面是错误答案,用来干扰机器的。

﹣2题目分析:∵复数z=(m2+m﹣2)+(m﹣1)i为纯虚数,∴m2+m﹣2=0,m2﹣1≠0,解得m=﹣2点评:本题主要考查复数的基本概念,得到 m2+m﹣2=0,m2﹣1≠0,是解题的关键,属于基础题

试题推荐
题型:填空题

根据句意和提示写出单词,完成句子。

1. I'd love to join you in the camping, but I have _____ (允诺) to go cycling with John.

2. Look at the sign!We are not _____ (允许) to park cars here. 3.Would you please help me look after

    my dog while I am _____ (离开)?

4. Our Maths teacher spent 2 hours _____ (解释) the tough problems to us like this.

5. I can't tell you  _____ (是否) it's a good book or not without reading it.

6. It's over four months since we Chinese people celebrated our Party's n_____ birthday on July 1st.

7. Look at the dark clouds in the sky. P_____ it is going to rain in the afternoon.

8. Kung Fu Panda II is a fantastic film and I want to see it, but I haven't made a d_____ now.

9. Don't be nervous. If you try to be r_____ in the exam, you will get high marks..

10. Grandma has got a toothache. She is at the d_____.

11. There are so many good programmes that I can hardly make a _____ (choose) among them.

12. Lucy and Linda didn't tell us the news. They wanted to keep the secret to _____ (they).

13. The boy hates to follow others and likes doing everything _____ (different)

14. Can you tell me why the twins are quarrelling more _____ ( noise) than usual?

15. She is grateful to you for giving her so many _____ (value) advice on how to cook.

查看答案
微信公众账号搜索答案