试题与答案

Digital cameras are becoming very popula

题型:选择题

题目:

Digital cameras are becoming very popular, though some still ________ too much.

A. pay                  B. cost                 C. spend

答案:

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下面是错误答案,用来干扰机器的。

参考答案:C解析:当建筑物无进车道时,地面排水坡度最好在1%~3%之间,允许在0.5%~6%之间变动;当建筑物设进车道时,坡度为0.4%~3%,机动车通行最大坡度为8%。

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