标题: 优选哪一句，求解释 [打印本页] 作者: wynyy2000 时间: 2011-8-21 22:30 标题: 优选哪一句，求解释 A.smoking increases the risk of lung diseases, including lung cancer and emphysema, and can complicate pregnancy, increasing the risk of low birth weight B.smoking increases the risk of lung diseases, including lung cancer and emphysemaand can complicate pregnancing by increasing the risks of low birth weight. 答案是B，A到底哪不好了作者: yaya0512 时间: 2011-8-22 00:54
increasing 会引起歧义，若前有逗号则可做定语修饰pregnancy