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问题 选择题

纯净的水呈中性，这是因为                                   （    ）

A．纯水中c(H+)=c(OH－)

B．纯水PH=7

C．纯水的离子积KW=1.0×10－14

D．纯水中无H＋也无OH－

答案

答案：A

单项选择题 A3/A4型题

患者女性，45岁，体型偏瘦，关节疼痛反复发作三年，双膝关节红肿热痛，刻下症见：膝关节灼热红肿，痛如刀割，筋脉抽掣，入夜更甚，壮热烦渴。舌红少津，脉弦数。应治以（）

A.宣痹汤

B.白虎桂枝汤

C.犀角散加味

D.蠲痹汤

E.乌头汤
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单项选择题

Man: I'm still waiting for my sister to come back and type the application letter for me.Woman: Why bother her I'll show you how to use the computer. It's quite easy.Question: What does the woman mean

A．She'll type the letter for the man.

B．She'll teach the man to operate the computer.

C．She doesn't think his sister is a good typist.

D．She thinks the man should buy a computer.
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