When demand for a factory's product is high, more money is spent at the factory for safety precaution and machinery maintenance than 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.

which of the following, if true about a factory when demand for its products is high, casts the most serious doubt on the conclusion draw above?

A Its employees ask for higher wages than they do at other times

B Its management hires new workers but lacks time to train them properly

C Its employees are less likely to lose their jobs than they are at other times

D Its management sponsors a monthly safety award for each division in the factory

E its old machinery is replaced iwth modern, automated models

问题是由When demand for a factory's product is high, more money is spent at the factory for safety precaution and machinery maintenance than demand is low.怎么得出less money is available for safety precautions and machinery maintenance。

还有就是B选项是如何起到cast the most serioud doubt 作用的，也是不解啊！希望大侠们指点一下迷津！

原文前提是 当产品需求增加的时候，工厂对生产安全和设备维护就更加重视，从而推出，当产品需求增加的时候，生产事故就会减少。

5个选项中，B是最好的选项，暗示产品需求增加会雇佣更多的员工，但是却没有给予足够的培训，所以也不一定能保证生产事故会减少。

对啊，我也是不明白，怎么都不管less money is available for safety precautions and machinery maintenance这句了呢？？？

想了半天，那莫非就是这句话是和demand is low 是并列的，而不是和Thus后的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并列，是不？？？？

那其实在语法上来讲（不看意思的话），是不是两种理解都对啊，这样不就有歧义了吗？不是唯一的理解了。。。

不过从意思上来看，还是应该和demand is low 并列合适点。。。

不过，我最初以为这是一种让解释矛盾的题。。。因为事故率低的话，用于安全防范和机器维护的钱也就能少了嘛，那这么说不也能解释的通吗？？？？

请指点 啊！！！

顶一下

哪位大侠能把这个句子翻译一下吗？把里面的逻辑关系帮我们理一理吧，刚开始做逻辑，希望大侠多多帮助

when demand is low and less money is available for safety precautions and machinery

maintenance.

我觉得less money is available for safety precautions and machinery maintenance.是对when demand is low 的补充说明。