Mike likes playing ______ golf while I like playing ______ piano.[ ]

A. the; the    

B. a; a    

C. /; the    

D. the;/

原则型谈判法强调通过谈判所取得的价值是______

A．经济价值
B．政治价值
C．人际关系价值
D．经济价值与人际关系价值