多选:人们在长期卷烟营销实践中形成的“三控”基本经验是()A.控频投放B.控点投放C.控价投放D.控量投放

题目内容:
人们在长期卷烟营销实践中形成的“三控”基本经验是()
A.控频投放
B.控点投放
C.控价投放
D.控量投放
参考答案:

Air pollution is more serious than water pollution.

Air pollution is more serious than water pollution.

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