制备嵌体窝洞时,与修复体边缘封闭直接相关的是()
A.洞的线角
B.边缘嵴
C.轴面角
D.洞斜面
E.洞的深度
参考答案:D
情景交际。
A: (1) is that blue packbag?
B: It must (2) Xu Fei's.
A: (3) do you say so?
B: Look, the bag is new. Xu Fei (4) a new one yesterday. He would like to travel to (9) .
A: That's great. He can (6) Eiffel (7) there. It's very (8) in the world.
B: Yes, so he bought a new bag to (9) his clothes.
A: Oh, I see. (10) go and give it to Xu Fei.
* * 填塞纱条取出时间不宜超过()
A.6小时
B.24小时
C.12小时
D.18小时
E.36小时