影响购买决策的关键是()。
A.顾客态度
B.购买的需要
C.购买的动机
D.购买过程
参考答案:A
圈闭压力产生的原因是()。
A、气体侵入井内;
B、停泵晚于关井
C、水侵入井内;
D、油侵入井内。
I really want to know _______. [ ]
A. what is wrong with my brother
B. how will he go to Beijing tomorrow
C. if had he bought that car
D. where did he go yesterday