these 和 they 有什么区别吗

citidandan

Besides adding complementary flavors to many foods, 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
(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

为什么不选B呢？

DayDreamings

应该是like exercise的问题。原句意思该是运动的效应像辣酱刺激脑子里的E一样。

如果是B，那就是运动像辣酱了

MarilynR

B错, 因为：
(1) like exercise 有歧义；
(2) that指代先行词effect, 则 the effect is like morphine, 不合逻辑。