The A(anti-smoking) campaign B(on campus) has made C(quite an impact) D(with) the students

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The A(anti-smoking) campaign B(on campus) has made C(quite an impact) D(with) the students.

请帮忙给出正确答案和分析,谢谢!

热搜:a是b的充分条件,b是a的必要条件吗