商业银行应在()时,向客户提供理财计划投资、收益的详细情况报告。
A. 理财计划终止
B. 每年年末
C. 每年4月
D. 每季度
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假设股票市场未来有三种状态:熊市、正常、牛市;对应的概率是0.2、0.5、0.3;对应三种状态,股票x的收益率分别是-20%、18%、50%;股票Y的收益率分别是-15%、20%、10%。股票x和股票Y的标准差分别是()。
A. 15%和26%
B. 20%和4%
C. 24%和13%
D. 28%和8%
At the party the ______ shy Chelsea felt comfortable enough to offer to give the guests a
A. always
B. ordinarily
C. never
D. completely
Historical research is essential for making inventions.
A. Y
B. N
C. NG
M: No, I'm not. I'm afraid of breaking my neck. So I'd rather be a bus commuter.
Q: Why won't the man learn to drive?
(15)
A. Because driving is too dangerous.
Because buying a car is too expensive.
C. Because getting a driver's licence is too difficult.
D. Because taking a bus is more convenient.