标题: 关于逆反，求助一题 [打印本页] 作者: wynyy2000 时间: 2011-5-7 23:24 标题: 关于逆反，求助一题 Stronger patent laws are needed to protect inventions from being pirated. With that protection, manufacturers would be encouraged to invest in the development of new products and technologies. Such investment frequently results in an increase in a manufacturer's productivity. Which of the following conclusions can most properly be drawn from the information above? C.Manufacturers will decrease investment in the development of new products and techonologies unless there are stronger patent laws E. Stronger patent laws would stimulate improvemnts in productivity for many manufacturers. 答案是E，当时看到C觉得是对原文的逆反，所以就没往下看了（大忌！要读完选项），但对于C，我还不太清楚这个算不算逆反？求助！作者: kikisunflower 时间: 2011-5-7 23:40
奥，以前我也纠结过这个问题，还是不要用逆否命题解吧，逆否命题常常写不准的，其实正着读挺顺
下面这个链接是我以前纠结逆否命题，然后就做错的一道题%>_<%
http://forum.chasedream.com/GMAT_CR/thread-540993-1-1.html作者: kikisunflower 时间: 2011-5-7 23:41
我觉得就assumption题型用逆否命题保险，其他题型都不用为好作者: kikisunflower 时间: 2011-5-7 23:43
而且即使要用逆否命题考虑这个题， 也应该是 Manufacturers will not increase investment 而不是 Manufacturers will decrease investment作者: kikisunflower 时间: 2011-5-7 23:51
楼上还是不准确， 我觉得下面这个更好点： Manufacturers will not be encouraged to increase investment
但是我觉得这个写出来还是有问题，因为“law will encourage m to increase investment”这句话表示的并不是law是encourage的充分条件。因为可能其他东西也可以encourage m to increase investment