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35. (26325-!-item-!-188;#058&002592) In laboratory rats, a low dose of aspirinusually suffices to block production of thromboxane, which is a substance that promotes bloodclotting, but not seriously interfering with the production of prostacyclin, whichprevents clotting.
(A) which is a substance that promotesblood clotting, but not seriously interfering (B) a substance that promotes bloodclotting, but not seriously interfering (C) a substance that promotes bloodclotting, but does not seriously interfere (D) which is a substance to promote bloodclotting, but does not seriously interfere (E) which is a substance that promotesblood clotting, but not a serious interference
请教NN们，C, D 项无论是同位语修饰还是非限制性从句修饰，逗号后面but引导的句子都可以理解成与主句suffices并列，且D项的并列结构更平行，为何正确答案是C? | 
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发表于 2013-4-15 13:59:37
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