标题: GMAT语法大全776题 [打印本页] 作者: dandan74 时间: 2003-10-28 13:29 标题: GMAT语法大全776题 The human growth hormone, made by the pituitary gland, is secreted during sleep in higher concentrations than when awake. (A) during sleep in higher concentrations than when awake (B) when sleeping in higher concentrations than waking hours (C) in higher concentrations during sleeping than waking (D) in higher concentrations during sleep than during waking hours (E) in higher concentrations when asleep than when awake
D问什莫要比C好呢？
作者: gemj 时间: 2003-10-28 13:55
during sleeping than waking 中during是介词sleeping是名词，不是分词。而waking只有形容词词性。当分词用又不行。所以不对。 而D中的waking hours是极其规范地道的表达： waking hours/life/day etc all the time when you are awake Indeed we sometimes spend a lot of our waking hours making sure that everything is as secure as we can make it.作者: sandralouisa 时间: 2003-10-28 18:54
thx for sharing作者: openmind 时间: 2005-10-12 11:45
thanks a lot Gemj...^_^