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【判断题】
使得某方案的净现值大于0的贴现率,一定小于该方案的内部收益率。( )A.
正确
B.
错误
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举一反三
【单选题】(2012·昆明高二检测)It is well-known that proper amounts of exercises, if _______ regularly, will benefit our health.
A.
being carried out
B.
carrying out
C.
carried out
D.
to carry out
【单选题】Ben bakes bread and Shawna knits sweaters. Ben and Shawna both like to eat bread and wear sweaters. In which of the following cases is it impossible for both Ben and Shawna to benefit from trade?
A.
Ben cannot knit sweaters and Shawna cannot bake bread.
B.
Ben is better than Shawna at baking bread and Shawna is better than Ben at knitting sweaters.
C.
Ben is better than Shawna at baking bread and at knitting sweaters.
D.
Both Ben and Shawna can benefit from trade in all of the above cases.
【单选题】Big Ben was named after
A.
Christopher Wren.
B.
Benjamin Hall.
C.
Ben John.
D.
Ben Nevis.
【简答题】Ben： 2
【简答题】某元件的导纳的有名值为 Y = G+jB ,当基准值取功率 S B ,电压为 U B ,则电导的标幺值为 。
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