根据对话内容，填上恰当的句子补全下列对话。

(A=Salesgirl   B=Mrs Green)

A: Good afternoon! Can I help you?

B: Yes, please. I'm looking for a mobile phone.

A: We have many popular kinds, like Motorola, Nokia and so on.

B: I prefer (更喜欢) the things made in China. ____  1____     ?

A: Yes, TCL is also popular. What about this one?            2  _ __  .

B: Well, I don't want the newest. I'd like a practical (实用的) one.  

A: This one looks nice and works well.

B:   _____3               ?

A: 1,350 yuan.

B: ______4_____ _ .  But I'll take it.

P波消失，代之以大小不等的小“f”波为（）

A.心室颤动

B.心室扑动

C.心房扑动

D.心房颤动

E.尖端扭转型室速