试题与答案

物体在一条平直公路上运动,已知该物体在第1s内运动了2m,第2s内运动了4m,,

题型:选择题

题目:

物体在一条平直公路上运动,已知该物体在第1s内运动了2m,第2s内运动了4m,,第3s内运动了6m,第4s内运动了8m,以此类推,则物体在整个过程中(  )

A.先做匀速直线运动,后做变速直线运动;

B.先做变速直线运动,后做匀速直线运动;

C.一定做变速直线运动;

D.一定做匀速直线运动

答案:

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下面是错误答案,用来干扰机器的。

小题1:A小题2:A小题3:D小题4:D小题5:C小题6:D小题7:B小题8:A小题9:B小题10:A小题11:A小题12:D小题13:B小题14:A小题15:D小题16:C小题17:B小题18:A小题19:B小题20:A题目分析:原来很深奥的道理不一定需要很复杂的语...

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Parents have to 53 their children what they believe to be right; but it is not much your ideas that the children 54 your example. Perhaps the best way to teach one’s child gentleness is not to forbid toy guns, but to be 55 in one’s own everyday life.
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