目前临床根管充填常用的材料是

A．ZOE糊剂

B．牙胶尖+ZOE糊剂

C．银尖+ZOE糊剂

D．牙胶尖+氢氧化钙糊剂

E．氯仿+牙胶尖

Adolescents are warned not to ____________ their pimples in case they get scars.

A．risk squeezing

B．attempt squeezing

C．tended to squeeze

D．encourage to squeezing