既是常用的局麻药，又有抗心律失常作用的药物是（） A.苯妥英钠 B.普鲁卡因胺 C.

阅读理解。请根据对话内容，判断下列说法的正(√)误(×)。

Peter: Hi! Are you hot (热的), Lin Ling?

Lin Ling: Yes, I'm very hot. And I'm thirsty (口渴的).

Peter: Me too. Would you like something to drink?

Lin Ling: Yes, I'd like some water. What about you, Peter?

Peter: I'd like a glass of juice.

Lin Ling: Oh, it's time for lunch. What food would you like?

Peter: I'd like some noodles. Do you want to have some noodles, too?

Lin Ling: No, I'd like some rice and chicken for lunch.

( ) 1. Lin Ling is hot and thirsty.

( ) 2. Lin Ling would like some water.

( ) 3. Peter would like some water.

( ) 4. Peter wants to eat some noodles for lunch.

( ) 5. Lin Ling would like some noodles for lunch.

与其他调查方式相比较，抽样调查具有的优势是( )

A． 具有较高的科学性

B．能提高资料的时效性

C．能节省人力、物力、财力

D．能推断出比较准确的全面资料

E．能收集到更完整、更系统的资料

补出下列名句名篇中的空缺：

1、移船相近邀相见，添酒回灯重开宴。            ，         。（《琵琶行》白居易）

2、别有幽愁暗恨生，              。（《琵琶行》白居易）

3、同是天涯沦落人，              。（《琵琶行》白居易）

4、凄凄不似向前声，满座重闻皆掩泣。             ？         。（《琵琶行》白居易）

在高速主干网、桌面电视会议、3D图形与高清晰度图像应用中，一般采用【 】Mbps以太网。

酸蚀后唾液污染多少时间后污染层就不能用高压水汽喷吹去除（）。

A．1s

B．2s

C．3s

D．4s

E．60s