理论上假牙修复应在拔牙后多长时间进行()
A.1个月
B.2个月
C.3个月
D.4个月
E.6个月
参考答案:B
_____ the instructions on the packet when you take the drug and the drug, I think, will work soon. [ ]
A. Follow
B. To follow
C. Following
D. Followed
监视段压力升高的原因是什么?