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标题: 一道prep指代问题，求NN解释~~ [打印本页]

作者: 半阙 时间: 2011-9-11 15:44
标题: 一道prep指代问题，求NN解释~~

PREP31、

Besides adding complementary flavors to many foods, hot sauces stimulate the release ofendorphins in the brain, just as exercise does, and these have a pain-relieving effect like morphine's.

(A) hot sauces stimulate the release of endorphins in the brain, just as exercise does, and these

have a pain-relieving effect like morphine's

(B) hot sauces stimulate the release of endorphins in the brain, like exercise, and they have a

pain-relieving effect that is like morphine

pain-relieving effect like morphine

(D) the release of endorphins in the brain is stimulated both by hot sauces and exercise, and they

have a pain-relieving effect like morphine's

(E) the release of endorphins in the brain is stimulated by hot sauces, just as with exercise, and

these have a pain-relieving effect like that of morphine

选A；答案上说BCD那个they 指代模糊，我不懂怎么就模糊了，不是就近指代dorphines么？如果BCD指代模糊，那么A不也模糊么？

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