龋病的好发牙面不包括（）
A.后牙面窝沟
B.前后牙邻面
C.前牙唇面
D.后牙颊面颈部
E.前牙舌面
参考答案：C
-- I had a really nice weekend on the beach.
-- __________.
A．Oh, that's very nice of you.
B．Congratulations
C．It's a pleasure.
D．I' m glad to hear that.
确定一个控件大小的属性是( )。
A．Width或Height
B．Width和Height
C．Top或Left
D．Top和Left
面窝沟
面窝沟