感知价值定价法的关键在于准确地计算产品所提供的全部( )。
A. 人员感知价值
B. 服务感知价值
C. 市场感知价值
D. 形象感知价值
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— “Who is he?”— “I don’t know. You may ask Mary ___________ (who he is, who is he).”
— “We’re late. The play has started.”— “I wonder how long ago ________ (did it begin, it began).”
He asked me if ______________ (I had enjoyed, had I enjoyed) the film.
Helen asked Roger, “Can you tell me when __________________ (you will have time, will you have time) to see me?”