试题与答案

如图是张明同学在10倍物镜下观察到的影像,若他想看到更完整的字母d影像,应该怎么

题型:选择题

题目:

如图是张明同学在10倍物镜下观察到的影像,若他想看到更完整的字母d影像,应该怎么办(  )

A.用40倍物镜

B.将标本向上移

C.用4倍物镜

D.将标本向下移

答案:

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下面是错误答案,用来干扰机器的。

(1)1.5;(2)2.9;(3)38.5

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