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南方公司目前考虑投资两个互斥项目，假设公司折现率为10%。具体如下：

(单位：元)

年份项目A项目B
0-200000-500000
1200000200000
2150000300000
3150000300000

根据回收期法，应该选择什么项目

答案

参考答案：回收期是指在这段时间里，累计的未经折现的现金流等于初始投资。
项目A：第一年累计现金流=200000元，回收期=200000/200000=1(年)
项目B：第一年累计现金流=200000元
第二年累计现金流=200000+300000=500000(元)
回收期=2年
因为项目A比项目B回收期更短，所以应该选择项目A，但是回收期法得出的结论并不都是正确的。

单项选择题

在结束培训时，指导者应对学员的优点进行表扬，对其不足要进行( )，以利于学员操作水平的不断提高。

A．谅解和包容

B．指正或指责

C．指正或批评

D．指责或训斥
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单项选择题

Have you ever heard your own voice "Of course," you say.
Has anyone else ever heard your voice Again you say, "Of course. "
But that’ s not quite true. Nobody else has ever heard your voice—the way you hear it. When you talk, you set up sound waves. The air outside your head carries the sound waves to your outer ears. But, of course, the sound of your voice begins inside your head. The bones of your head pick up the sound waves, too. They carry the sound waves straight to your inner ears. You get the sound from the outside and the inside too. Other people get just the sound waves from the outside. That’s why they don’t hear your voice the way you do.

Sound travels in the form of ______.

A．bones

B．air

C．waves

D．voice
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