物料提升机安装完毕后,应进行()试验。
A、空载试验
B、额定载荷试验
C、拉伸试验
D、超载试验
参考答案:A, B, D
Most members of the committee were in favour of the suggestion; only a(n) _____ were against it. [ ]
A. majority
B. minority
C. quantity
D. amount
男,38岁。制作金属烤瓷冠,在试戴时出现翘动现象的可能原因中不包括()。
A.石膏代型磨损
B.组织面有铸瘤
C.邻面接触过紧
D.基牙预备轴面聚合度过大
E.修复体未完全就位