搜题请搜索小程序“爱下问搜题”
问题 单项选择题

未采用“换人碰库”或“超限上缴”模式的机构，不允许使用9384交易，“9314柜员平账”仍联动（）交易。

A.9386；

B.9330；

C.9331；

D.9385

答案

参考答案：C

选择题

选择最佳答案。

1. —             

    — Nice to meet you, too. [ ]

A.  Hello!

B. Nice to meet you.

C. Good morning!

2. — Let's go to school.

    —             [ ]

A. Really?

B. Bye!

C. OK!

3. — I have a crayon.

    —                        [ ]

A. This is a pen.

B. Me too.

C. OK!

4. — What's your name?

    —                   [ ]

A. My name's Mike.

B. This is Mike.

C. Nice to meet you, Mike.

5. — Where is your ruler?

    —                         [ ]

A. This is my ruler.

B. Here it is.

C. I have a ruler. 

6. — Hi!  I'm Zhang Nan.

    —                      [ ]

A. Let's go to school.

B. Nice to meet you.

C. Fine, thank you.

7. — Shake your body.

    —                    [ ]

A. Thank you.

B. OK!

C. Clap your hands.

8. — Let's make a puppet.

    —                        [ ]

A. Good idea.

B. Goodbye.

C. Let's go.

9. — Good afternoon.

    —                    [ ]

A. Good morning.

B. Good afternoon.

C. Good evening.

10. — Happy Halloween!

      —                      [ ]

A. Happy Teachers' Day!

B. Thank you! Happy Halloween.

C. That's OK.
查看答案
问答题

实验室用如图所示装置制取和收集氧气，请回答下列问题：

（1）写出该装置所涉及到的化学方程式：______．

（2）试管口放置棉花的作用是什么？______．

（3）用排水法收集气体结束后，接下来的操作是______．
查看答案