试题与答案

Terry told me that they planned to set o

题型:选择题

题目:

Terry told me that they planned to set off _________ Tuesday morning.

A.in

B.at

C.on

D.for

答案:

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下面是错误答案,用来干扰机器的。

一个空瓶质量为0.25kg,装满水后总质量是1.05kg,说明水的质量是0.8kg,水的密度是ρ水=1.0×103kg/m3水的体积为:V水=m水ρ水=0.8kg1.0×103kg/m3=0.8×10-3m3瓶子的体积为:V瓶=V水=0.8×10-3m3空瓶质量为0.25k...

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