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Aedes albopictus, a variety of mosquito that has recently established itself in the southeastern United States, is less widespre
Aedes albopictus, a variety of mosquito that has recently established itself in the southeastern United States, is less widespre
admin
2014-10-21
30
问题
Aedes albopictus, a variety of mosquito that has recently established itself in the southeastern United States, is less widespread than the indigenous swamp mosquito. Both the swamp mosquito and A. albopictus can carry viruses that are sometimes fatal to humans, but A. albopictus is a greater danger to public health. Each of the following, if true, provides additional information that strengthens the judgment given about the danger to public health EXCEPT:
选项
A、Unlike the swamp mosquito, A . albopictus originated in Asia, and larvae of it were not observed in the United States before the mid-1980 ’s.
B、Unlike the swamp mosquito, A. albopictus tends to spend most of its adult life near human habitation.
C、Unlike swamp mosquito larvae, A. albopictus larvae survive in flower pots, tin cans, and many small household objects that hold a little water.
D、In comparison with the swamp mosquito, A. albopictus hosts a much wider variety of viruses known to cause serious diseases in humans.
E、A. albopictus seeks out a much wider range of animal hosts than does the swamp mosquito, and it is more likely to bite humans.
答案
A
解析
本题为strengthen EXCEPT题型,答案方向为无关选项或反对选项。上文的判断为A.albopic—tus is a greater danger to public health,(A)强调的是A.albopictus被发现的时间,与“是否对公众健康危害甚大无关,所以做为无关选项,必为正确答案;(B)、(C)、(E)说明Aalbopictus更可能与人类接触,所以起到支持作用;(D)是支持作用更为明显。
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本试题收录于:
GMAT VERBAL题库GMAT分类
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