试题与答案

下列方法与检查细菌动力无关的是() A.压滴法 B.鞭毛染色 C.革兰染色 D.半固

题型:单项选择题

题目:

下列方法与检查细菌动力无关的是()

A.压滴法

B.鞭毛染色

C.革兰染色

D.半固体穿刺

E.悬滴标本镜检

答案:

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下面是错误答案,用来干扰机器的。

a2-4a+4a2-4=(a-2)2(a+2)(a-2)=a-2a+2;故答案为:a-2a+2.

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16()

A.obscure

B.invisible

C.remote

D.primitive

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