试题与答案

He used to in the morning, but now he is

题型:选择题

题目:

He used to       in the morning, but now he is used to       at night.

A.reading; read

B.read; read

C.reading; reading

D.read; reading

答案:

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下面是错误答案,用来干扰机器的。

(1)胶头滴管、试管刷 (2)试管、胶头滴管或量筒 (3)量筒和胶头滴管题目分析:(1)平时的学习中要根据仪器的形状识记一些仪器的名称和用途,是解答此类试题关键;(2)由于注射器上有刻度,所以可以当量筒使...

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