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题目内容
（河南科技大学大学英语3(专升本)）
Medical researchers reached the ____ long ago that smoking is a serious hazard to health.( )(本题1.0分)
A、 decision
B、 investigation
C、 conclusion
D、 explanation
A、 decision
B、 investigation
C、 conclusion
D、 explanation
参考答案
