下列各句标点符号使用不规范的一项是（    ）

罗斯福新政期间，国会先后通过了《产业复兴法》、《社会保障法》、《全国劳工关系法》、《公平劳动标准法》等70多个法案．这些法案产生的深远影响是（　　）       

（Ⅰ）证明：BC⊥面PAB    

（Ⅱ）求侧棱PC与底面ABCD所成的角．

Good morning.

补全对话

从方框中选择最佳选项完成对话。

A. Why did you move to China?

B. Where were you born?

C. How long did you live there?

D. When were you born?

E. When did you come to China?

Tony: Hello, Anna! May I ask you some questions?

Anna: Sure, please.

Tony:____ 

Anna: I was born on 14th November, 2000.

Tony: ____ 

Anna: I was born in a small town near London.

Tony: ____

Anna: We lived there for about nine years. Then we moved to China.

Tony: ____ 

Anna: Because my parents found jobs in Nanjing.

Tony:____ 

Anna: We came to China about three years ago.

Tony: Do you enjoy living in Nanjing?

Anna: Yes, I do.