---Please come here again.  

-----I will surely ____ you when I come to your city someday.

A．drop in at

B．drop in

C．drop on

D．drop in on

不恰当提问的消极作用是（）。

A．造成相互依赖和责任转移

B．容易使咨询师产生防卫心理

C．减少求助者自我探索的主动

D．容易使咨询师产生情绪困扰