牙周膜最薄处是在()
A.牙根中1/3
B.牙根颈1/3
C.根尖处
D.根分叉处
E.根尖1/3
参考答案:A
I am sorry I have no time at present to ______ more detail or give you an account of other cities of interest.
A.bring into B.take into C.come into D.go into
裂解双动滑阀开度由()控制。