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问题 单项选择题

加速资本周转速度，可以增加年剩余价值量和提高年剩余价值率，这是因为

A．剩余价值率提高了

B．劳动生产率提高了

C．必要劳动时间缩短了

D．发挥作用的可变资本数量增加了

答案

参考答案：D

单项选择题

A large manufacturing company is in a competitive industry. It has above-average investment opportunities and its return on investments has been above the required rate of return. The firm retains a large portion of earnings to fund its superior investment projects. The company is best characterized as a.（）

A. growth company.

B. cyclical company.

C. speculative company.
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单项选择题 配伍题

血浆放在4℃静置过夜会形成一层"奶酪"是因为含有（）

A.CM

B.VLDL

C.IDL

D.LDL

E.HDL
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