全口义齿初戴时发现正中鸦正常,前伸前牙早接触应调磨 ()
A.上切牙切缘舌斜面
B.上切牙切缘唇斜面
C.上切牙舌窝
D.下切牙切缘
E.下切牙舌斜面
参考答案:A
即时性菜单的优点有()。
A.便于标准化管理
B.灵活性强
C.减少工作单调感
D.菜单更换快,容易保持对顾客的吸引力
I arrived home at midnight, _______ my parents had been waiting for nearly three hours.
A.at that time
B.by that time
C.at which time
D.by which time