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【判断题】
配制l碘标准滴定液应使用容量瓶，精确定量配制A.
正确
B.
错误
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举一反三
【单选题】Your estimate of the market risk premium is 9%. The risk-free rate of return is 4.1% and General Motors has a beta of 1.8. What is General Motors' cost of equity capital?
A.
20.3%
B.
18.3%
C.
19.3%
D.
21.3%
【单选题】Your estimate of the market risk premium is 6%. The risk-free rate of return is 4%, and General Motors has a beta of 1.6. According to the Capital Asset Pricing Model (CAPM), what is the expected retu...
A.
12.2%
B.
12.9%
C.
13.6%
D.
14.3%
【简答题】The general estimate of the present-day English vocabulary is over one _________ words.
【判断题】An allowance for receivables is a general estimate of the percentage of debts which are not expected to be repaid.
A.
正确
B.
错误
【单选题】Your estimate of the market risk premium is 7%. The risk-free rate of return is 4% and General Motors has a beta of 1.6. What is General Motors' cost of equity capital?
A.
15.2%
B.
14.4%
C.
16.0%
D.
13.7%
【单选题】Your estimate of the market risk premium is 9%. The risk-free rate of return is 4.1% and General Motors has a beta of 1.8. What is General Motors' cost of equity capital?
A.
20.3%
B.
18.3%
C.
19.3%
D.
21.3%
【单选题】下列函数 f ( x.t )可表示弹性介质中的一维波动,式中 A , a 和 b 是正的常数。其中哪个函数表示沿 x 轴负方向传播的行波?
A.
f （ x,t ） =Acos （ ax+bt ）
B.
f （ x,t ） =Acos （ ax-bt ）
C.
f （ x,t ） =Acosax · cosbt
D.
f （ x,t ） =Asinax · sinbt
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