（）不得作为质押品。（《个人定期存单质押贷款办法》第4条）
A、所有权有争议
B、已作担保
C、挂失
D、失效
参考答案：A, B, C, D
He is walking unsteadily as if he _______drunk. You’d better support him so that he won’t fall over his
own feet. [ ]
A. were
B. was
C. is
D. has been
采用标准养护的混凝土试件，拆模后可放在温度为20±2℃的不流动的水中进行养护。 ( )
g unsteadily as if he _______drunk. You’d better support him so that he won’t fall over his