72. The number of undergraduate degrees in engineering awarded by colleges and universities in the United States increased by more than twice from 1978 to 1985.
(A) increased by more than twice
(B) increased more than two times
此二项均不是正确答案,请问A是否应当改为 increased by 200%; 再者，B 该当如何修改？
83. Any medical test will sometimes fail to detect （a condition when it is present and indicate that there is one） when it is not.
(C) a condition when it is present and indicate that it is present
请问，此处indicate的主语是谁？如果是a condition,为何不是indicates???? (by the way, the choice C is right one.)作者: 猫猫头 时间: 2003-3-14 19:16
twice 前面不用by
two times=twice
83.主语是any medical test,因为前面有了to作者: bz 时间: 2003-3-15 15:29 标题: 感谢回答
感谢感谢，我茅塞顿开
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