目前临床根管充填常用的材料是
A．银尖+ZOE糊剂
B．牙胶尖+ZOE糊剂
C．ZOE糊剂
D．牙胶尖+氢氧化钙糊剂
E．氯仿+牙胶尖
参考答案：B
Corporations and labor unions have______great benefits upon their employees and members as well as upon the general publiC．
A．conferred
B．granted
C．flung
D．submitted
