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【单选题】
某建设项目投资方案建设期为2年,建设期内每年年初投资400万元,运营期每年年末净收益为150万元。若基准收益率为12%,运营期为18年,残值为零,并已知(P/A,12%,18)=7.2497则该投资方案的净现值和静态投资回收期分别为()。
A.
213.80万元和7.33年
B.
213.80万元和6.33年
C.
109.77万元和7.33年
D.
109.77万元和6.33年
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举一反三
【单选题】(单选)在设计和选择换热器时,是否需要设计者选择管程流速:
A.
需要
B.
不需要
C.
有时需要,有时不需要
D.
不好说
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【简答题】Anna lived on the side of a valley. One winter, there was a very big flood, and a lot of houses 36 Anna's were washed away. Anna's house was high enough to escape the flood, so when the water had disa...
【简答题】Anna lived on the side of a valley. One winter, there was a very big flood, and a lot of houses 1 Anna's were washed away. Anna's house was high enough to escape the flood, so when the water had disap...
【单选题】描述性研究方法不包括()
A.
观察法
B.
自然实验法
C.
个案法
D.
调查法
【单选题】药物流行病学常用的研究方法不包括
A.
描述性研究方法
B.
分析性研究方法
C.
实验性研究方法
D.
病例对照研究方法
E.
集中监测研究方法
【单选题】在设计和选择换热器时,是否需要设计者选择管程流速( )
A.
需要
B.
不需要
C.
有时需要,有时不需要
D.
不好说
【简答题】Anna lived on the side of a valley. One summer, there was a very big , and a lot of houses down below Anna’s were washed away. Anna’s house was enough to escape the flood, so when the water had and th...
【判断题】The houses had a lot of big windows,both round and rectangular.
A.
正确
B.
错误
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