固定义齿的固位体是()
A.粘固于基牙上的嵌体
B.粘固于基牙上的全冠
C.粘固于基牙上的部分冠
D.基牙
E.桥体
参考答案:A, B, C
.—What _____ this time tomorrow morning?
—Er…, I’m not sure for the moment.
A.will you do
B.will you be doing
C.are you to do
D.are you going to do
货币期权