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6. It can be inferred from the passage that which of the following plant species would be LEAST likely to experience a decrease in fecundity as a result of the spraying of a pesticide not directly toxic to plants? (A) A flowering tree pollinated by only a few insect species (B) A kind of insect-pollinated vine producing few flowers (C) A wind-pollinated flowering tree that is short-lived (D) A flowering shrub pollinated by a large number of insect species（C） (E) A type of wildflower typically pollinated by larger insects 我觉得答案c不对，应该选d，请看下面的定位，大家讨论一下？
The fecundity effects described here are likely to have the most profound impact on plant species with all four of the following characteristics: a short life span, a narrow geographic range, an incapacity for vegetative propagation, and a dependence on a small number of insect-pollinator species. Perhaps we should give special attention to the conservation of such plant species since they lack key factors in their defenses against the environmental disruption caused by pesticide use. | 
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发表于 2008-5-17 08:45:00
