The number of mountain gorillas is declining with such rapidity that the populat

游客2024-01-13  4

问题 The number of mountain gorillas is declining with such rapidity that the population is one-half in the twenty years between a count made by George Schaller in 1960 and the one made by Dian Fossey in 1980.

选项 A、with such rapidity that the population is one-half
B、with such rapidity that the population was one-half
C、so rapidly the population divided in half
D、so rapidly that the population was halved
E、in such rapidity that the population is halved

答案 D

解析 修饰动词declining用rapidly显然要比用with rapidity好得多,且符合习惯,排除A、B、E;且A、E中一般现在时是不对的;同时is(was)one half这个表达是不明确的,不如washalved准确,即“减半”。
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