一期内痔常用的检查方法是
A．金黄膏B．红油膏C．冲和膏D．疯油膏E．回阳玉龙膏
参考答案：C
—May I take the magazine out of the reading room?
—No, you can't. You _______ read it here. It's the rule. [ ]
A. must
B. would
C. may
D. might
