题目内容

Comparing Australia and New Zealand, which country is a member of the British Commonwealth of Nations?

A. only Australia
B. only New Zealand
C. both Australia and New Zealand
D. neither Australia or New Zealand

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A. only Australia
B. only New Zealand
C. both Australia and New Zealand
D. neither Australia or New Zealand

A. only Australia
B. only New Zealand
C. both Australia and New Zealand
D. neither Australia or New Zealand

A. 放出热量大于吸收热量
B. 气体对外界作正功
C. 气体内能增加
D. 气体内能减少

A. 系统对外作的功不可能大于系统从外界吸收的热量
B. 系统内能的增量一定等于系统从外界吸收的热量
C. 不可能存在这样的循环过程，在此循环过程中，外界对系统作的功不等于系统传给外界的热量
D. 热机的效率不可能等于1