关于选磨法描述哪项是正确的()
A.先磨改正中位的早接触点
B.一次不应磨改太多
C.根尖有炎症的松动牙应消炎后再磨改
D.尽量恢复牙齿的球面外形
E.以上均对
参考答案:E
产后子宫收缩乏力性出血时,采取最简单、迅速制止出血的方法是
A.羊水过多B.过期妊娠C.胎儿窘迫D.协调性宫缩乏力E.不协调性宫缩乏力
A bicycle race which________at raising money for endangered animals started in Dalian yesterday.
A.expected
B.tried
C.intended
D.aimed