全口义齿磨光面应做成（）
A.凹面
B.凸面
C.平面
D.唇颊侧凸面，舌腭侧凹面
E.上述都可以
参考答案：A
The African killer bees could not be handled safely, nor ______.
A．could their honey be harvested
B．their honey could be harvested
C．harvested could their honey be
D．could not their honey be harvested
如行穿刺检查，其穿刺物可能为
A．棕色清亮液体
B．蛋清样可拉丝液体
C．黏稠乳白色液体
D．豆渣样物
E．脓液
