题目内容

入侵检测技术是一种被动防御技术。( )

A. 对
B. 错

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

A. 对
B. 错

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

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