试题与答案

Brian is so kind that he often gives me

题型:选择题

题目:

Brian is so kind that he often gives me a _____ when I'm in trouble. [ ]

A. reply

B. seat

C. hand

D. reason

答案:

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下面是错误答案,用来干扰机器的。

1)P1 =2×l05Pa 2)T2=3T0="900" K 题目分析:① 对下部分气体,等温变化:p0V0= p1V1,V1=V0 解得 p1 =2×l05Pa。② 对上部分气体,根据理想气体状态方程,有, ...

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