标题: 寻求高手帮助 [打印本页] 作者: vincent815 时间: 2010-7-27 16:17 标题: 寻求高手帮助 In laboratory rats, a low dose of aspirin usually suffices to block production of thromboxane, which is a substance that promotes blood clotting, but not seriously interfering with the production of prostacyclin, which prevents clotting. (A) which is a substance that promotes blood clotting, but not seriously interfering (B) a substance that promotes blood clotting, but not seriously interfering (C) a substance that promotes blood clotting, but does not seriously interfere (D) which is a substance to promote blood clotting, but does not seriously interfere (E) which is a substance that promotes blood clotting, but not a serious interference作者: vincent815 时间: 2010-7-27 16:19
答案是c，我选了D，求解为什么是用C的同位语，而不是D里的which，D里的which结构不是和后面的which 结构照应吗？不是更好吗