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【多选题】
科学理论的几个本质特征是( )A.
程序化
B.
B客观性
C.
C数量化
D.
D现代技术手段的运用
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反馈参考答案：
举一反三
【简答题】Malcolm X began to better understand what he was reading with his continuousl enlarged vocabulary.
【单选题】证券X的期望收益率为12%，标准差为20%；证券Y期望收益率为15%，标准差为27%。如果两个证券的相关系数为0.7，则它们的协方差为( )。
A.
0.038
B.
0.042
C.
0.048
D.
0.054
【简答题】__Malcolm X began to better understand what he was reading with his continuously enlarged vocabulary.
【单选题】证券X的期望收益率为12%，标准差为20%;证券Y的期望收益率为15%，标准差为27%。如果这两个证券在组合的比重相同，则组合的期望收益率为( )。
A.
12.00%
B.
13.50%
C.
15.50%
D.
27.00%
【简答题】5 For the first two days, Malcolm X just skimmed through the pages of the dictionary trying to negotiate his way through its unfamiliar format . He told us of his amazement at how closely related the ...
【简答题】8 As Malcolm X ' s word base broadened , he began to better understand the books he read. It was the first time in his life this had ever happened, " Anyone who has read a great deal can imagine the n...
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