题目内容

马氏体耐热钢在水冷条件下不能淬硬

A. 对
B. 错

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(化学反应熵)封闭系统中, W'= 0 ,恒温、恒压下的化学反应可用来计算系统的熵变。

A. ΔS=Q/T
B. ΔS=ΔH/T
C. ΔS=(ΔH-ΔG)/T
D. ΔS=nRln( V2/ V1).

企业在路演时,哪一项不是提炼的路演项目的核心价值()

A. 市场有需求
B. 企业能实干
C. 项目有特色
D. 目标范围广

1. With regard to its size, Australia is ______ country in the world.

A. the third largest
B. the fourth largest
C. the fifth largest
D. the sixth largest

2. Most Australians live on the cool, wet, forested ______.

A. southeast coastland
B. southwestcoastland
C. northeastcoastland
D. northwestcoastland

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