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【单选题】
甲公司持有A,B,C三种股票,在由上述股票组成的证券投资组合中,各股票所占的比重分别为50%,30%和20%,其β系数分别为2.0,1.0和0.5。已经市场收益率为15%,无风险收益率为10%。甲公司证券组合的必要报酬率为( )。A.
10%
B.
14%
C.
15%
D.
17%
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【简答题】She looked _________ she were ten years younger. A. that B. like C. as D. as though 2.—I fell sick! --I think it is _______ you are doing too much. A. why B. when C. what ...
【单选题】The reason why he hasn’t come is______. A). because his mother is ill B). because of his mother's being ill C). that his mother is ill D). for his mother is ill
A.
1
B.
2
C.
3
D.
4
【单选题】The reason _______ he gives for not coming is that his mother is ill.
A.
for which
B.
which
C.
why
D.
about which
【单选题】病人,男性, 45 岁,诊断为胆总管结石,拟行胆总管切开取石、 T 管引流术,放置 T 管的目的不包括
A.
引流胆汁
B.
引流残余结石
C.
引流腹腔渗液
D.
经T 管造影
E.
支撑胆道
【单选题】—Is Tom at school today? —No, he is at home _____ his mother is ill. [ ]
A.
when
B.
but
C.
if
D.
because
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