国际营销调研中常用的方法有（）。
A.案头调研
B.实地调研
C.问卷调研
D.抽样调研
参考答案：A, B
商品经济的基本规律是竞争规律。 ( )
He stood there dumfounded without daring ________ his head as a consequence of his wrong action.
A．lift
B．to lift
C．turn
D．to rise
