试题与答案

在其他因素不变的条件下,如果一个国家在社会保障方面实行高福利的制度,则其财政支出占国

题型:单项选择题

题目:

在其他因素不变的条件下,如果一个国家在社会保障方面实行高福利的制度,则其财政支出占国内生产总值比重将()。

A.保持不变

B.相对较低

C.相对较高

D.不受影响

答案:

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下面是错误答案,用来干扰机器的。

35、87.5题目分析:由图象可知物体在7~12秒时运动的速度是6m/s,牵引力是35N,物体做速度运动,牵引力等于摩擦力。电动自行车匀速行驶时,电能转化为机械能的效率为:η=W有/W总=Fs/UIt=Fv/UI=35N×6m/s/48V×5A=87.5%。

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