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 各位帮忙看一看，为什么答案是A？these不是不能单独作为代词指代，必须后面补足名词吗？求指导！！！作者: 鱼winwin 时间: 2012-3-13 21:48
manhanttan上是说不行 这个题选a 大概也许是又行了。。。作者: 鱼winwin 时间: 2012-3-13 21:49
好像是说跟前半句主语一样 就给省了作者: qingzi501 时间: 2012-3-14 09:32