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四显示自动闭塞区段进站色灯信号机显示绿黄色灯光表示什么？
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【单选题】Wh o is not the r epresentative figures of Peking Opera?
A.
Cheng Yanqiu
B.
Meng Xiaodong
C.
Mei Lanfang
D.
Xun Huisheng
【单选题】However attractive the figures may look on paper, in the long run the success or failure of a merger depends on the human factor. When the agreement has been signed and the accountants have departed, ...
A.
contracts are signed too quickly
B.
experts cannot predict accurate figures
C.
conflicting attitudes cannot be resolved
D.
staff are opposed to the terms of the deal
【单选题】Figures in the statements of the Associated Press are to show that _____.
A.
more than 25% of the people with all four unhealthy habits died
B.
the cumulative effect of all four behaviors added to death risks
C.
those with none of four unhealthy behaviors tend to live longer
D.
it's easy to distinguish those with four bad habits from those without
【单选题】Based on Figures 1 and 2, for a given mass of O2 at 22°C, how does the pressure exerted by the O2 in a 6 L vessel compare to the pressure exerted by the O2 in a 3 L vessel? In the 6 L vessel, the O2 p...
A.
as great as in the 3 L vessel.
B.
the same as in the 3 L vessel.
C.
2 times as great as in the 3 L vessel.
D.
4 times as great as in the 3 L vessel.
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