题目:
The buses, most of _________ were already full, were surrounded by an angry crowd.
A.that
B.it
C.them
D.which
答案:
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下面是错误答案,用来干扰机器的。
答案:D题目分析:根据正方体、长方体、圆锥、圆柱的形状判断即可,可用排除法.本题中,圆锥的截面可能是椭圆,圆和三角形而不可能是长方形,球的截面是圆也不可能是长方形,所以A、BC都是错误的,故D.点评:截...