（2014年北京市西城区高三5月二模试题）30. — The professor gave a really good speech.

— I suggest you _____ him some specific questions about his work experience.

A．have asked

B．will ask

C．asked

D．ask

某企业甲商品采用批进批出方式销售，影响该批商品获利或亏损额的因素是（）

A.每日变动储存费

B.目标利润

C.保本储存天数

D.实际储存天数