题目内容

Push strategy requires manufacturers to take middlemen as the main promotion object.

A. 对
B. 错

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Personal selling belongs to pull strategy.

A. 对
B. 错

What's the difference between push strategy and pull strategy?

可见光疗法不包括

A. 红光
B. 蓝光
C. 蓝紫光
D. 多光谱
E. 红外线

属于中频电疗法频率的是

A. 80kHz
B. 800kHz
C. 150Hz
D. 150kHz
E. 1000kHz