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题目内容
（新疆工程学院大学英语3）
I am not sure whether I can gain any profit from the investment, so I can’t make a(n) ____ tohelp you.
(A) exact
(B) defined
(C) definite
(D) sure
参考答案
I am not sure whether I can gain any profit from the investment, so I can’t make a(n) ____ tohelp you.
(A) exact
(B) defined
(C) definite
(D) sure