题目内容

Does Polygamy still exist?

A. Yes.
B. No.
C. Not sure.
D. It never exists.

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\What have revolutionized the music industry by creating high-quality, low-cost recording technologies and digital distribution?

A. Digital technologies
B. Live music
C. Streaming services
D. More and more audiences

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What may be the general rule to talk about Matters of the Heart?

A. Straightforward
B. Pour your hearts out
C. Ask about someone’s love life, marriage and family before you have a friendship with someone
D. Not too personal, not too fast

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What has emerged with programs for entertainment, shopping and healthcare? ( )

A. VR/ AR
B. Publishing
C. Music
D. Film

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有两个可逆热机，热机1在800K与400K的两热源间工作，热机2在 600K与200K的两热源间工作，则两热机的工作效率η1与η2：

A. η1＜η2
B. 相等
C. η1＞η2
D. 无法比较大小

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Does Polygamy still exist?

A. Yes. B. No. C. Not sure. D. It never exists.

\What have revolutionized the music industry by creating high-quality, low-cost recording technologies and digital distribution?

What may be the general rule to talk about Matters of the Heart?

What has emerged with programs for entertainment, shopping and healthcare? ( )

有两个可逆热机，热机1在800K与400K的两热源间工作，热机2在 600K与200K的两热源间工作，则两热机的工作效率η1与η2：

A. Yes.
B. No.
C. Not sure.
D. It never exists.