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问题 单项选择题

1岁以内婴幼儿心脏手术，复跳后心率应维持在（）

A.120～140bpm

B.100～120bpm

C.90～100bpm

D.80～90bpm

E.50～90bpm

答案

参考答案：A

单项选择题

Lynne Hampton purchased 100 shares of $75 stock on margin. The margin requirement set by the Federal Reserve Board was 40 percent, but Hampton’s brokerage firm requires a total margin of 50 percent. Currently the stock is selling at $62 per share. What is Hampton’s return on investment before commission and interest if she sells the stock now（）

A. -17%.

B. -35%.

C. -40%.
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问答题 简答题

创建全国文明城市对主要大街和重点地区面貌有哪些要求？
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