对急性牙髓炎的应急处理最好是（）
A.开髓
B.局部用药
C.全身用药
D.针刺
E.指压
参考答案：A
What would have happened __________ , as far as the river bank?
A．Bob had walked farther
B．if Bob should walk farther
C．had Bob walked farther
D．if Bob walked farther
按操作方法和发式形态划分，盘发大致可分为（）大类。
A.2
B.3
C.4
D.5
