天冬的功效是( ) A．益肾健骨，软坚散结 B．固精止带，补脾止

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问题单项选择题

天冬的功效是( )

A．益肾健骨，软坚散结
B．固精止带，补脾止泻，益肾养心
C．养血补心，软坚散结
D．滋阴潜阳，退热除蒸，软坚散结
E．润燥滑肠，软坚散结

答案

参考答案：D

补全对话，情景问答

根据情景完成对话。

A:_ 1 can I do for you?

B:Do you 2 any gloves?

A:Yes. We have quite a few here. How 3 this pair?

B:Good. _ 4 5 are they?

A:Fifteen yuan.

B:That's too expensive. 6 you got any chea-per ones?

A: 7 , we have. This pair is 8 five yuan.

B:May I try 9 0n?

A:Sure !

B:OK, 1'11 10 this pair. Here's the money.

A:Thank you.

填空题

静电的危害是由于静电放电和静电场力而引起的。因此静电的基本物理特为：（）的相互吸引；与大地间有（）；会产生（）。