400-600-1123
本题由lindy提供
登录申友雷哥GMAT，查看答案及解析
视频解析
暂无视频解析，点击获取更多视频内容
文字解析
答案：
A
研究发现
过敏由花粉引起，花粉由蜜蜂带来，因此能够得出蜜蜂才是导致过敏的原因
A 没有蜜蜂，花粉不会导致过敏。正确，因为花粉并不是导致过敏的真正原因
B 蜂蜜在花产生的过程中起着重要作用。花的产生，无关选项
C 过敏案例在蜜蜂在的时候才被研究。明显实验方法的错误，既然蜜蜂是关键原因，那必定有蜜蜂在或者不在的对比实验
D 没有过敏的时候，没有蜜蜂花也会生长。未知
E 即使没有花粉，过敏也可能由花直接导致。未知
GMAT会员
提交
┃热门题目
- 【OG18-P680-668题】In a review of 2,000 studies of human behavior that date back to the 1940s, two Swiss psychologists, declaring that since most of the studies had failed to control for such variables as social class and family size, none could be taken seriously.
- 【OG18-P680-671题】Manufacturers rate batteries in watt-hours; if they rate the watt-hour higher, the longer the battery can be expected to last.
- 【OG18-P680-672题】At the end of the 1930s, Duke Ellington was looking for a composer to assist him-someone not only who could arrange music for his successful big band, but mirroring his eccentric writing style as well in order to finish the many pieces he had started but never completed.
- 【OG20-P569-634题】Snowmaking machines work by spraying a mist that freezes immediately on contact with cold air. Because the sudden freezing kills bacteria, QuickFreeze is planning to market a wastewater purification system that works on the same principle. The process works only when temperatures are cold, however, so municipalities using it will still need to maintain a conventional system. Which of the following, if true, provides the strongest grounds for a prediction that municipalities will buy QuickFreeze's purification system despite the need to maintain a conventional purification system as well?
- 【OG20-P147-8题】(12 -13 )+(13 -14 )+(14 -15 )+(15 -16 )=
┃OG视频
┃最新资讯
┃最新出分
添加官方小助手微信
了解更多GMAT考试与咨询
12G备考资料