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问题 单项选择题

若投资3000万元，每年收回率为80%，在10年内收回全部本利，则每年应收回（）万元。

A．447.09

B．149.03

C．258.06

D．596.12

答案

参考答案：A

单项选择题

三力平衡汇交定理是共面且互不平行三力平衡的（）条件。

A.充分

B.必要

C.充分必要
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单项选择题

A client receiving morphine for long-term pain management develops tolerance. When the client asks the nurse what it means, which of the following should the nurse response

A．"Tolerance is an allergic reaction to a medication. "

B．"Tolerance is an ability to take the same drug for extended periods of time. "

C．"Tolerance is an increased response to a medication. "

D．"Tolerance is a diminished response to a drug so that more is required to reach the same effect. "
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