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【单选题】
将1.89g非电解质溶于100g水中,测得凝固点为-0.220°C,则该非电解质的相对分子量为(已知水的Kf =1.86 K×kg×mol-1)。
A.
160
B.
320
C.
1.60×10 3
D.
3.20×10 3
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B.
a large number of new entrants be attracted to the labor force.
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managers be reluctant to adopt changes.
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查看完整题目与答案
【单选题】One plausible explanation of the U.S. productivity slowdown starting in 1973 is that it was the result of the time needed to adapt to new technology. This explanation would require that
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change the IP address to host machine name in the LISTENER.ORA file and restart the listener process
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