搜题请搜索小程序“爱下问搜题”
问题 判断题

果实生长与受精后子房生长素含量增多有关。

答案

参考答案：错

选择题

下列运算正确的是（　　）

A．x3•x4=x12

B．（x-2）2=x2-4

C．3x-4x=-x

D．（-6x6）÷（-2x2）=3x3
查看答案
补全对话，情景问答
补全对话。
A. Your telephone number, please. 
B. I’ll tell her to call you back.  
C. I’m afraid you can’t.  
D. No, thanks. I’ll call her later.  
E. That’s very kind of you.  
F. I’m sure she will.
A: Hello! May I speak to Miss Gao?
B: __1__ She isn’t here right now.
A: Could you tell me where she is?
B: She’s out for lunch with her friends.
A: By the way, will she come back?
B: __2__  Shall I take a message?
A: __3__ We are going to Beidaihe for a holiday. I want to know if she wants to go with us. Can I leave
my telephone number?
B: OK. Wait a moment, please. I must go and get a pen and a piece of paper... OK. __4__
A: 67682578. My name is Zhang Jian.
B: All right. __5__
A: That’ll be fine. Thank you very much. Goodbye!
B: Bye.
查看答案