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【单选题】
有一瓶质量为M的氢气(视作刚性双原子分子的理想气体),温度为T,则氢分子的平均动能为 ( )
A.
kT
B.
kT
C.
RT
D.
RT
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【判断题】在垄断竞争的条件下,从长期来说平均收益曲线一定相切于平均成本曲线想右下方倾斜的部分。
A.
正确
B.
错误
【简答题】在某市举行的一次乒乓球邀请赛上,有三名专业选手与三名业余选手参加.比赛采用单循环方式进行,就是说每两名选手都要比赛一场.为公平起见,用以下方法记分.开赛前每位迭手各有10分作为底分,每赛-场,胜者加分,负者扣分.每胜专业选手一场的加2分,每胜业余选手-场的加1分;专业选手每负一场扣2分,业余选手每负一场扣l分.现问:一位业余选手至少要胜几场,才能确保他的得分比专业选手为高?
【单选题】Consider an asset that has a beta of 1.20. If the risk-free rate is 3.5% and the market risk premium is 3%, the expected return on the asset is ( ).
A.
7.1%
B.
6.5%
C.
3.5%
D.
4.2%
【单选题】Consider the risk for the exporter, which one is correct( )
A.
FCA > CPT > CIP
B.
FCA > CIP  > CPT
C.
CIP  > CPT > FCA
D.
CIP  = CPT = FCA
【判断题】单循环是参赛者不要与每一位对手都进行比赛
A.
正确
B.
错误
【判断题】使用球头铣刀加工曲面,如果选用足够小的步距就可以获得好的表面粗糙度。( )
A.
正确
B.
错误
【单选题】I think it’s better to give it a second thought so many of us consider it a risk.
A.
as
B.
before
C.
although
D.
once
【单选题】YJV4×25+1×16 应套用( )电缆定额?
A.
五芯
B.
四芯
C.
单芯
D.
铝芯
【判断题】单循环是参赛者与每一位对手都进行比赛
A.
正确
B.
错误
【单选题】Which of the following is a risk that firms must consider prior to expanding abroad?
A.
The domestic consumers may prefer low-priced products.
B.
The market in the foreign country may be too similar to the domestic market.
C.
Consumers in the foreign country may be very particular about quality.
D.
Management may not understand the foreign country's business culture.
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