40% of the plants who developed fungus but not died 这句话有歧义 不知道原题是不是表达清晰 如果是developed fungus 的群体中有40%死了, 那答案就是25% 如果是developed fungus 且 not died的是总体的40%,那么答案就是55%
同意11楼的解答。。 40% of the plants who developed fungus but not died ——如果是这样的表达,那么应该是指总体中的40%,即答案应是55%吧;若是表达得了F的群体中的40%,我觉得不应是连词“but”,而说“40% of the plants who developed fungus did not die ”比较好//看12楼的说法,题意应该是后者~