Critical Reasoning
试题详情
题目：
First-time computer buyers buying PXC home computers typically buy models that cost much less and have a smaller profit margin per computer than do PXC computers bought by people replacing their computers with more powerful models. Last year PXC's profits from computer sales were substantially higher than the previous year, although about the same number of PXC computers were sold and the prices and profit margins for each computer model that PXC sells remained unchanged.
If the statements above are true, which of the following is most strongly supported by them?
选项:
A、PXC's competitors raised the prices on their computers last year, making PXC computers more attractive to first-time computer buyers.
B、The number of people buying PXC computers who also bought PXC computer-related products, such as printers, was larger last year than the previous year.
C、Among computer buyers who bought a PXC computer to replace their existing computer, the proportion who were replacing a computer made by a competitor of PXC was greater last year than the previous year.
D、The proportion of PXC computers bought by first-time computer buyers was smaller last year than the previous year.
E、PXC's production costs for its computers were lower last year than they had been the previous year.
答案:
D
提问：
最后条件给出每台电脑的销量利润率单价都没变，总利润增加了，总利润=总收入-总成本， 总收入=单价X销量 所以不是总成本增加了么？ 我直接选了E，如果按照相关性做，总成本原文没有提到可以算无关，可是这不是可以推出来么。 正确答案D我也留下了，可是一时想不通D，就选了E. 请问E为什么不能推出总成本。
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1
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8776
提问：
选了E，既然价钱和profit margin没变，profit上升了，那么应该说明它的成本变低了啊。还有profit margin是什么，原文没解释。
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1
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8573
提问：
这道题目我的问题在于题干没有理解-从cost much less and have a smaller profit margin per computer than....对比了正确的理解，这个profit margin per computer角度是从电脑制造商来说的，而cost much less是从顾客角度来说的；我起初一直理解为从顾客的角度，第一次买电脑买便宜的-cost much less；并且profit margin?顾客哪里来的profit margin...我一直想不通.并且下一句话也无法帮我理解这个疑惑 我直接放弃了这道题..反思了一下: 我思路局限在了从顾客角度出发理解，但其实这个是需要从顾客 和制造商俩个1角度出发 分别 理解才正确；有什么方法可以避免这个问题.
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0
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8519
提问：
做题的时候先看了问题，问的是支持以上观点。然后看了文章最后一句。
得到的信息是：PXC的利润去年比前年高，但电脑售出的数量、每台电脑的利润价格都没变。当时我把中心放在做什么能使得利润变高。这个思路当时做的时候觉得没有挨边的选项。。。这时我是不是该回到原文往前多看一句再做题？
请老师答疑，谢谢！
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