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【单选题】
N A 代表加德罗常数，下列说法正确的是A.
9g D 2 O中含有的电子数为5 N A
B.
标准状况下，11.2 L H 2 O所含的分子数为0.5 N A
C.
7.1g Cl 2 与足量NaOH溶液反应转移的电子数为0.2 N A
D.
0.1 mol CH 4 所含的电子数为1 N A
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【单选题】Man: I had a hard time getting through this novel. Woman: I share your feeling. Who can remember the names of 35 different characters? Question: What does the woman imply?
A.
She has learned a lot from the novel.
B.
She also found the plot difficult to follow.
C.
She usually has difficulty remembering names.
D.
She can recall the names of most characters in the novel.
【单选题】The company is going to do some promotions on .
A.
new products
B.
old stock
C.
both A and B
D.
popular products
【单选题】Let us assume, for the moment, that labor m not prepared to work for a lower money-wage and that a reduction in the existing level of money-wages would lead, through strikes or otherwise, to a withdra...
A.
a fall in the value of the existing money-wage would lead to a withdrawal of labor
B.
a rise in the price of wage-goods would lead to a withdrawal of labor
C.
the demand of labor is for a rise of existing money-wage
D.
the demand of labor is for reduction in the value of real wages
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