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标题: CR求高手解答 [打印本页]

作者: 包子TG    时间: 2016-10-22 22:51
标题: CR求高手解答
Wide dissemination of wireless networks in cities is a practical way to meet the needs of city households, schools and businesses. Rural communities have found that wireless networks are both more reliable and cheaper than land-based networks.

Which of the following would most likely be cited by a supporter of the argument?


Urban areas do not pose additional problems for the effective operation of wireless networks.

Wireless networks work far better where population density is low.

Iceland, a very rural country, successfully uses wireless networks.

The expenses of wireless transmission in areas with large buildings is much higher.

Poor neighborhoods have less access to cable internet than do educators or businesses.

作者: Bradz    时间: 2016-10-23 09:43
文章的argument是无线网的广泛铺盖是满足城市需求的一个切实可行的方法。问题是问哪一个选项support这个argument。

B错。B说无线网在人口密度小的地方更好。但我们很难assume城市是人口密度小的地方。
C错。C说冰岛很好地使用了无线网。但由于冰岛是一个乡村城市,不能说明无线网在城市的使用好坏。
D错。D说在有大型建筑物的地区,无线网的传输成本高。大城市大型建筑物多,不适合。
E错。E说贫困区比教育机构或者商业机构更少被有线网覆盖。乍一看貌似有support:有线网有缺陷,那么应该使用无线网。但是得出这个结论, 需要我们assume无线网没有同样的缺陷,所以也不对。

A说城市地区不会对无线网络的有效运营造成额外的问题。其实我也不喜欢这个选项。首先额外很模糊,是什么的额外看不出来。其次他只是说了无线网在城市effective,不是文中说的practical,这两个还是有差别的。不过,首先和其他选项比较,其次它微弱地肯定了无线网在城市使用的有效性,这里我选择A。
作者: 一脸懵逼    时间: 2016-10-27 21:41
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