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标题: 补充题 17 [打印本页]

作者: an0765 时间: 2004-10-14 21:13
标题: 补充题 17

17. There has been a 30- to 40-fold increase in the incidence of malaria caused by increasing mosquito resistance against pesticides.

(A) increase in the incidence of malaria caused by increasing mosquito resistance against

(B) increase in the incidence of malaria because of increasing resistance of mosquitoes to

(D) incidence of malaria increase caused by increasing mosquito resistance against（B）

(E) incidence of malaria increase because of increased mosquito resistance to

fold 后面用increase? Resistance to?

作者: LES 时间: 2004-10-14 21:45

increase in the incidence of malaria because of increasing resistance of mosquitoes to

1. increase这里是名词。

2. resistance (of mosquitoes) to

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