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标题: 请教一道语法题,谢谢 [打印本页]

作者: winners    时间: 2005-3-29 19:58     标题: 请教一道语法题,谢谢

94-08

26. Because it is often dependent of the conditions of crystallization, the composition of the

A

哪里错了呢?是不是impotant 后应加to do sth 结构?

谢谢。

minerals in a rock can be important in determining the rock's geologic history.




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