段1：①Biologists estimate that as many as 2 million lesser prairie chickens—a kind of bird living on stretching grasslands—once lent red to the often grey landscape of the midwestern and southwestern United States. ②But just some 22,000 birds remain today, occupying about 16% of the species’ historic range.
段2：①The crash was a major reason the U.S. Fish and Wildlife Service (USFWS) decided to formally list the bird as threatened.
26. The major reason for listing the lesser prairie chicken as threatened is .
[A] its drastically decreased population
[B] the underestimate of the grassland acreage
[C] a desperate appeal from some biologists
[D] the insistence of private landowners
答案：A
问：26题A选项是对如下哪一项的同义改写？
A : remain
B : threaten
C : crash
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