单项选择题
We laugh at jokes，but seldom about how they work．A．we think B．think we C．we do think D．do we think
多项选择题 下列不是Access2003窗体中控件的常用属性的是（）
多项选择题 按保险经营实施方式，保险可分为（）。
单项选择题 一I’m sorry．That wasn’t of much help．一Oh，_______．As a matter of fact，it was most helpful．A．sure it was B．it doesn’t matter C．of course not D．thanks anyway
