常态物证
参考答案：
能够用人的感官发现，并能够以常规手段加以提取，并可以随案移交的物证。
I locked myself out of my apartment. I didn't know what to do."You may call your roommate."
A．could have called
B．might have called
C．would have called
D．must have called
消极公众
