Recent research into aging suggests that the body’s defense mechanisms may lose the ability to distinguish what is alien.(2003年春

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问题 Recent research into aging suggests that the body’s defense mechanisms may lose the ability to distinguish what is alien.(2003年春季电子科技大学考博试题)

选项 A、insane
B、infectious
C、foreign
D、poisonous

答案C

解析本题中，alien的意思是“外来的，不同的”。四个选项中，foreign的意思是“外国的，异质的”，如：a foreign object in the eye．(眼睛中的异物)。insane的意思是“患精神病的，极度愚蠢的”；infectious的意思是“有传染性的，易感染的”。只有C项符合题意。

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考博英语

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Recent research into aging suggests that the body’s defense mechanisms may lose the ability to distinguish what is alien.(2003年春

考博英语

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Lovecan’tconquerall.So,beforecouplestietheknot,theyshouldknowwhatthey’regettinginto.Thetabooagainstcouplesl

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ThestudyoflawhasbeenrecognizedforcenturiesasabasicintellectualdisciplineinEuropeanuniversities.However,onlyin

ThestudyoflawhasbeenrecognizedforcenturiesasabasicintellectualdisciplineinEuropeanuniversities.However,onlyin

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