以下是引用ellewoods在2005-3-14 13:07:00的发言：188.When demand for a factory’s products is high, more money is spent at the factory for safety precautions and machinery maintenance than when demand is low. Thus the average number of on-the-job accidents per employee each month should be lower during periods when demand is high than when demand is low and less money is available for safety precautions and machinery maintenance(红色部分是一个整体和需求量大的时候比). 不明白题目的最后一句，怎么会是less money is available for safety precautions and machinery mainatenance?
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发表于 2005-3-14 13:07:00
