标题: 请教一道逻辑题 [打印本页]
作者: georgina1107 时间: 2010-10-1 20:09 标题: 请教一道逻辑题
. GWD21-Q30:C / B
In the past, most children who went sledding in the winter snow in Verland used wooden sleds with runners and steering bars.Ten years ago, smooth plastic sleds became popular; they go faster than wooden sleds but are harder to steer and slow.The concern that plastic sleds are more dangerous is clearly borne out by the fact that the number of children injured while sledding was much higher last winter than it was ten years ago.
Which of the following, if true in Verland, most seriously undermines the force of the evidence cited?
A.A few children still use traditional wooden sleds.
B.Very few children wear any kind of protective gear, such as helmets, while sledding.
C.Plastic sleds can be used in a much wider variety of snow conditions than wooden sleds can.
D.Most sledding injuries occur when a sled collides with a tree, a rock, or, another sled.
Because the traditional wooden sled can carry more than one rider, an accident involving a wooden sled can result in several children being injured
削弱的话，B选项不就正好说明不是plastic sleds危险，而是小孩们没有装备防护道具~~~
C选项说plastics sleds课使用的范围广乐，不是就间接说明plastic sleds危险吗？ 那么C选项不是就是支持选项了~~怎么会是削弱呢？？？
做这个题一看C我就说是支持肯定不选 pass掉了~~~ 请教 谢谢~~
作者: giflier 时间: 2010-10-2 06:48
首先，我认为B不对，没有削弱文章。因为B选项没有说明时间，要是比较是现在和十年前的区别倒是起到了削弱的作用。
其次，文章说是由于塑料的更快但更难驾驭，所以从受伤人数得出新的不安全。但是C选项告诉我们其实是它被更广泛的使用，也就是说引起更多的受伤的原因可能是应为塑料的没有用在原来的环境之内。所以如果新的不被用于更广的条件下，那么可能不会造成更多的伤害。
本人表达能力差，希望楼主能看懂我的回答……
作者: georgina1107 时间: 2010-10-3 06:31
谢谢~~能看懂~~
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