病理缩复环表现为( )
A.有节律性B.无对称性和极性C.易造成会阴Ⅲ度撕裂D.环逐渐升高E.环的位置不变
参考答案:D
已知集合A={x|y=lg(x-3)},{y|y=2x},则A∩B=( )
A.(0,+∞)
B.(3,+∞)
C.R
D.∅
I really don't know how to _____ the naughty boy. [ ]
A. do with
B. deal with
C. treat with
D. play