prep SC 4

racy0226

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.
(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

lisaireland

A? 主语只能是Hot sauces，就在A和B中选了~

racy0226

A我就不明白为什么用these，因为代词是不能单独做主语的

芳芳钟

同问！

grace麦子

下面是我在曼哈顿上看到ron的回答，貌似大家都说这题出的不好，还有曼哈顿的另一个老师说“these”可能是题目给错了，但是我觉得大家能通过这题学习巩固相关的知识点就好啦～
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if this is really a gmatprep problem, i would suggest that you check the original for transcription errors, as all 5 of these choices are simply wrong.

to wit:
(a)
* poor parallelism. (a correct gmat choice would almost always include much closer parallelism, such as ...they do blah blah blah, like exercise, and they do blah blah blah, like morphine)
* can't use 'these' as a standalone pronoun. (this/that/these/those are only acceptable as adjectives - these people, that hypothesis, etc. - or as part of parallel constructions - the symphonies of beethoven vs. those of bach, etc.)

(b)
faulty comparison (a pain-relieving effect is compared directly to morphine, rather than to the pain-relieving effect of morphine as obviously intended)

(c), (d), (e) as explained by the guest poster above me.


[editor: apparently this problem is legitimate. it's one of the worst official problems i've seen ... but we have to learn from it]