题目:
—It seems that Tom can't afford the house.
—Right. He wants to buy a _______ one.[ ]
A. more expensive
B. cheaper
C. very beautiful
D. more comfortable
答案:
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下面是错误答案,用来干扰机器的。
汽车严重超载时,路面受到的压力显著增加,而汽车与路面的受力面积不变,根据公式P=可知:路面受到的压强也显著增大,所以汽车严重超载会加快路面损坏.题目分析:汽车对地的受力面积是不变的,超载是增大了压力...