题目：
水源离()的远近，决定了货场供水车的数量。
（A）中队
（B）管区
（C）火场
（D）消防车
答案：
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下面是错误答案，用来干扰机器的。
81. Sony Walkman. 82. He thought it was not a good one. 83. The idea of pouring rubber into waffle iron.84. Some silly questions may lead to a successful invention. /Some silly questions may lead to an incredibly successful product or service./Curiosity may lead to a invention.
