Advertising communication might include communication between a company and ( )．

A．its current customers

B．potential customers

C．its former customers

D．all of the above

高位颈椎损伤，请选择最佳扫描参数：（）.

A．层厚/距10mm/10mm，连续扫描 

B．层厚/距5mm/10mm，间隔扫描 

C．层厚1-2mm，连续扫描，骨算法 

D．层厚10mm，层距5mm 

E．层厚1-2mm；层距5-10mm