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标题: 求教！【已解决】 [打印本页]

作者: shawn0311 时间: 2008-5-23 21:35
标题: 求教！【已解决】

33. A substance derived from the Madagascar periwinkle, which has proved useful in decreasing mortality among young leukemia patients, is cultivated in China as part of a program to integrate traditional herbal medicine into a contemporary system of health care.

(A) A substance derived from the Madagascar periwinkle, which has proved useful in decreasing mortality among young leukemia patients,

(B) A derivative, which has proved useful in decreasing mortality among young leukemia patients, of the Madagascar periwinkle,

(D) The Madagascar periwinkle has a derivative which has proved useful in decreasing mortality among young leukemia patients, that

(E) The Madagascar periwinkle, a derivative of which has proved useful in decreasing mortality among young leukemia patients,

答案是E，为什么不能选C呢？这是从携隐的语法大全987里找的第33题，请大家给我讲解一下吧，谢谢！

[此贴子已经被作者于2008-5-23 21:54:56编辑过]

作者: raiden_lee 时间: 2008-5-23 21:52
逻辑上，主句的主语是periwinkle ,not derivative or substance. Only periwinkle(。。。花） can be cultivated.

作者: shawn0311 时间: 2008-5-23 21:54
嗯，好的，看来是单词不过关，谢谢LS的NN了

作者: AMBER513 时间: 2019-9-28 15:50
看一下！

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