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标题: [求助]SC大全第33题 [打印本页]

作者: pourquoiwhy 时间: 2009-1-31 15:47
标题: [求助]SC大全第33题

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）

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

作者: heice 时间: 2009-1-31 19:13
C

作者: tv34377773 时间: 2009-2-8 12:17
这个题的解题要点是在后面的谓语和主语的搭配，is cultivated决定了主语，a的A substance，b的 A derivative，c 的A Madagascar periwinkle derivative都是不能种植的东西，d的that的用法是不对的，that不能引导非限定定语从句，答安是e么，我不同意2
楼的

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