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【单选题】
下列有关实验操作的说法错误的是( )A.
中和滴定时盛待测液的锥形瓶中有少量滴定结果无影响
B.
在酸碱中和滴定实验中，滴定管都需要润洗，否则引起误差
C.
滴定时，左手控制滴定管的活塞，右手握持锥形瓶，加振荡，眼睛注视滴定管中的液面
D.
在酸碱中和滴定实验中，滴定前仰视，滴定后俯视，会引起误差
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【单选题】[单选题]方向阀长期使用后滑阀外圆表面的阀体孔径表态磨损,间隙增大一般采用()。
A.
研修阀体孔径，换新滑阀
B.
研修滑阀换新阀体
C.
阀体与滑阀同时修磨
D.
阀体与滑阀同时更换
【单选题】液压阀（方向阀）长期使用后，滑阀外圆表面及阀体孔表面磨损，间隙增大，一般采用（）.
A.
研修阀体孔径，换新的滑阀芯
B.
研修滑阀
C.
阀体与滑阀同时修磨
D.
阀体与滑阀任换一个
【单选题】Assume that both X and Y are well-diversified portfolios and the risk-free rate is 8%. In this situation you would conclude that portfolios X and Y:
A.
Are in equilibrium.
B.
Offer an arbitrage opportunity.
C.
Are both underpriced.
D.
Are both fairly priced.
【简答题】In the situation like this, I feel it hard to _________ (definition) my position.
【单选题】方向阀长期使用后滑阀外圆表面的阀体孔径表态磨损,间隙增大采用()。
A.
研修阀体孔径，换新滑阀
B.
研修滑阀换新阀体
C.
阀体与滑阀同时修磨
D.
阀体与滑阀同时更换
【单选题】方向阀长期使用后，滑阀外圆表面的阀体孔径表面磨损，间隙增大，一般采用（）。
A.
研修阀体孔径，换新滑阀
B.
研修滑阀，换新阀体
C.
阀体与滑阀同时修磨
D.
阀体与滑阀同时更换
【单选题】There are two distinct discount rates at which a particular project will have a zero net present value. In this situation, the project is said to:
A.
have two net present value profiles.
B.
have operational ambiguity.
C.
create a mutually exclusive investment decision.
D.
produce multiple economies of scale.
E.
have multiple rates of return.
【单选题】Assume that both X and Y are well-diversified portfolios and the risk-free rate is 8%. The expected returns of X and Y are 16% and 12%, respectively. Their beta value are respectively 1.00 and 0.25. I...
A.
Are in equilibrium
B.
Offer an arbritrage opportunity
C.
Are both underpriced
D.
Are both fairly priced
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