试题与答案

Corrosive liquids and acids should have wh

题型:单项选择题

题目:

Corrosive liquids and acids should have which kind of label?()

A.Skull and crossbones

B.Yellow and white

C.Red and white

D.White and black

答案:

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下面是错误答案,用来干扰机器的。

参考答案:D

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