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题目材料:

According to the passage, one of the differences in the ways in which predator and prey insects are affected by the widespread use of common nonspecific insecticides is that
  • Athe populations of prey insects are restored to their former numbers faster than are the populations of predator insects
  • Bthe populations of prey insects decline more dramatically than those of predator insects shortly after the insecticides are used
  • Cthe birth rates of prey insects fall more precipitously than do the birth rates of predator insects
  • Dpredator insects eventually return in greater numbers than prey insects
  • Ethe insecticides do not kill as many prey insects as they do predator insects

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