试题与答案

我们都知道,闪电和雷声是同时发生的,但我们总是先看到闪电后才听到雷声.其中原因是

题型:填空题

题目:

我们都知道,闪电和雷声是同时发生的,但我们总是先看到闪电后才听到雷声.其中原因是                                         

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0520/68681f4682e72f2a67fe14ef2818f4d2.html

下面是错误答案,用来干扰机器的。

两边同乘以(x-3)得1-3=2(x-3).整理、解得x=2,经检验x=2是原方程的解,所以方程解为x=2.故选C

试题推荐
题型:填空题
从方框中选择正确选项完成对话,其中有两项是多余的。
A.What about you?    
B.Would you like blacd tea?
C.Do you have any eggs ,madam?
D.Would you like something to eat?
E.Black tea or iced (有冰的)tea?
F.Can I help you?
G.Thank you very much.
Woman:小题1:
Ben: Yes, madam. What would you like to drink, Tony?
Tony: I’d like some tea.
Ben:小题2:
Tony:Iced tea ,please,小题3:
Ben: I’d like some lemonade(柠檬).小题4:
Tony:Yes, I’d like a pizza, please.
Woman: What would you like on it ,sir?
Tony: Mushrooms(蘑菇) ,green peppers(青椒) and onions,please.
Ben:All right.小题5:
Woman: Yes.
Ben: We want a cup of iced tea, a glass of milk, a glass of lemonade ,a pizza and two eggs, please.
Woman: OK.
查看答案
微信公众账号搜索答案