某公司股票的贝塔系数为1.5，无风险利率为4%，市场上所有股票的平均利率为8%，则该公司的必要报酬率为（）。
A. 3%
B. 5%
C. 10%
D. 12%
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喷浆工现场交接检查时，要检查顶板、设备运转、材料存贮量情况等等。
A. 正确
B. 错误
In order to determine the trimming arm for your vessel at any particular draft，which of the following would you compare?（）.
A. Longitudinal center of buoyancy and longitudinal center of gravity
B. Longitudinal center of floatation and longitudinal center of gravity
C. Longitudinal center of floatation and longitudinal center of buoyancy
D. Longitudinal tipping center and longitudinal center of gravity
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