求问一道新题【OG20-696题】

dongtingjunjun

【OG20-696题】A moderately large city is redesigning its central downtown area and is considering a plan that would reduce the number of lanes for automobiles and trucks and increase those for bicycles and pedestrians. The intent is to attract more workers and shoppers to downtown businesses by making downtown easier to reach and more pleasant to move around in.
Which of the following would, if true, most strongly support the prediction that the plan would achieve its goal?
A  People who make a habit of walking or bicycling whenever feasible derive significant health benefits from doing so.
B  Most people who prefer to shop at suburban malls instead of downtown urban areas do so because parking is easier and cheaper at the former.
C  Most people who own and frequently ride bicycles for recreational purposes live at a significant distance from downtown urban areas.
D  If the proposed lane restrictions on drivers are rigorously enforced, more people will likely be attracted to downtown businesses than would otherwise be.
E  In other moderately sized cities where measures were taken to make downtowns more accessible for walkers and cyclists, downtown businesses began to thrive.
正确答案：E
我最后DE二选一选了D，请问D为什么不可以？

dongtingjunjun

啊啊啊有大神帮忙看下吗？

Siki吴

D重复前提，没给出额外信息，不能质疑plan执行是否严格。

行素

D算是重复前提，最主要的是不能加强。比如，我听了ron的课，sc就能被解决。一个人说：CD上的大神都这么干并且成功的，另一个人说：只要你认真听就可以。你觉得哪个更加强。前者是归纳法中的类比，后者呢，只是重复了这一判定

likui

题干里只有一个关系的陈述 “减车道、增步道 --> 吸引更多的人进入闹市中心”。选项D中的是否“严格施行”才奏效，题干给的信息无法判断；otherwise如何，题干中的信息也不涉及。

不是咸yu

请问各位大神，E选项的话不会存在一个类比不成立的问题吗？在别的地方成功在这里不一定成功呀

AlanHeeee

不是咸yu 发表于 2019-7-30 21:43
请问各位大神，E选项的话不会存在一个类比不成立的问题吗？在别的地方成功在这里不一定成功呀
...

充分必要性的区别

只要必要性，不是必须支持/解释/削弱entirely，只要能支持/解释/削弱就行。

Bensontuo

簡單的接線而已。

如果原文邏輯要對, 那必要假設就是- " 這些多的工作者以及消費者必然走路且騎腳踏車 ”, 同時之間, 這裡有個因果邏輯。

因為實施計畫, 所以目標成功。

所以在要加強邏輯的時候馬上尋找三個點

1. 馬上刪掉所有必要假設取非的選項

2. 從剩下的選項裡面找尋有無其他的例子有如此的因果關係

3. 如果都找不到, 用反證法:  沒因, 所以沒果


如果你認為Ｄ為答案, 那你就是自行假設了 ” more people be attracted must be either workers or shoppers, or both, and they must be either pedestrians or bicyclist, or both "

MikaT

行素 发表于 2019-7-4 21:03
D算是重复前提，最主要的是不能加强。比如，我听了ron的课，sc就能被解决。一个人说：CD上的大神都这么干并 ...

同意！               

sherryx128

重复前提确实是加强选项, 但D选项不是重复前提. 原文的前提是减少车道, 增加步道, 没说rigorously enforced; 认真听Ron的课≠听Ron的课, 不是重复.
CR里有很多题其实考查的就是提取中心, 准确理解原文和选项表达的意思.