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