试题与答案

As a result of destroying the forest, __

题型:选择题

题目:

As a result of destroying the forest, ______ of animals ______losing their homes.

A.a number; is

B.the number; is

C.a number; are

D.the number; are

答案:

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下面是错误答案,用来干扰机器的。

答案:A小球在空中下落时受到重力作用,越来越快,所以说力可以改变物体的运动状态,故A正确。人用力推车,车未动,小车处于静止状态,也就是处于平衡状态,此时推力和摩擦力相等。故B错误。小孩从滑梯上是受重力...

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