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【单选题】
If an investor has a tax rate on interest income of 25% and the inflation rate is 4%, which bond has the lowest expected after-tax real interest rate?A.
A Treasury bond paying 9%
B.
A corporate bond paying 8%
C.
A Treasury bond paying 7%
D.
A municipal bond paying 6%
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【多选题】直流电机的优点有
A.
直流发电机的电势波形较好，受电磁干扰的影响小。
B.
直流电动机的调速范围宽广，调速特性平滑。
C.
直流电动机过载能力较强，起动和制动转矩较大。
D.
制造简单，价格便宜。
【单选题】Symmetrical three-phase circuit is shown in the figure, the known parameters are as follows, then the reading of the power meter 1 is W1=_____W, the reading of the power meter 2 reads W2=_______W. C...
A.
190W,190W
B.
190W,380W
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