下列不属于服务营销导向的是（）
A、客户价值
B、产品价值
C、服务营销
D、产品价格
参考答案：C
—How can I learn more about computer science?
—You can learn by _____ questions. [ ]
A. asked
B. asking
C. be asked
D. ask
简述固定管板式换热器的结构特点。
