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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
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