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问题 单项选择题

两个几何尺寸相同、绕线方向不同的绕线轮，在绳的拉力下沿平直固定轨道做纯滚动，设绳端的速度都是ν在图a、b两种情况下，轮的角速度及轮心的速度分别用表\示，则ω1与与的相互关系分别是（）。

A.ω1=ω2转向相同，

B.ω1<ω2转向相同，

C.ω1>ω2转向相反，

D.ω1<ω2转向相反，

答案

参考答案：B

单项选择题

着便鞋（含凉鞋）时，只准穿（）鞋（女军人还可以着浅色凉鞋）。

A、白色

B、黑色、棕色

C、黑色

D、棕色
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单项选择题

An analyst is doing research about a floating-rate security and its price change. All else being equal, under what condition, the price of a floating-rate security is most likely to react in the same way to changes in market interest rates as a fixed-rate coupon bond（）

A. Market rates increase between coupon reset dates.

B. Market rates are substantially below the floating rate security's cap rate.

C. Market rates are substantially above the floating rate security's cap rate.
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