标题: 逻辑一题，本月JJ考古的一道 [打印本页] 作者: 小皮球PAL 时间: 2012-12-23 12:35 标题: 逻辑一题，本月JJ考古的一道 Scientists have made genetic modifications to cotton to increase its resistance to insect pests. According to framer’s report, the amount of insecticide need per acre to control insect pests was only slightly lower for those who tried the modified seed than that for those who did not. Therefore, since the modified seed costs more than ordinary seed without producing yields of higher market value, switching to the modified seed would be unlikely to benefit most cotton farmers economically. 正解Whether the framers who have tried the modified seed planted as many acres of cotton on average, as farmers using the ordinary seed did.