自体牙移植常用的供牙是
A.上颌尖牙
B.上颌双尖牙
C.下颌第三磨牙
D.下颌双尖牙
E.上颌第三磨牙
参考答案:C
They will leave for Paris _____ three o’clock in the afternoon and we’ll fly to London _______ a few weeks.
A.after, in
B.in, after
C.on, in
D.after, after
( )是政府派出机构。
A.人事局 B.工商局 C.区公所 D.省驻京办事处