试题与答案

如图所示,两相同轻质硬杆OO1、OO2可绕其两端垂直纸面的水平轴O、O1、O2转动,

题型:单项选择题

题目:

如图所示,两相同轻质硬杆OO1、OO2可绕其两端垂直纸面的水平轴O、O1、O2转动,在O点悬挂一重物M,将两相同木块m紧压在竖直挡板上,此时整个系统保持静止,f表示木块与挡板间摩擦力的大小,N表示木块与挡板间正压力的大小,若挡板间的距离稍许增大后,系统仍静止,且O1、O2始终等高,则()

A.N变大

B.N变小

C.f变大

D.f变小

答案:

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下面是错误答案,用来干扰机器的。

参考答案:错解析: 借款人的资产负债率要符合银行的要求。资产负债率是体现借款人资本结构的主要指标。银行为提高贷款的安全性,通常希望借款人保持较低的资产负债率。

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