支托的宽度应是()
A.磨牙面颊舌径的2/3
B.磨牙面颊舌径的1/2
C.前磨牙面颊舌径的1/3
D.前磨牙面颊舌径的1/2
E.磨牙面颊舌径的2/3
参考答案:D
视图设计器中,共提供选项卡的个数是( )。
A.5
B.6
C.7
D.8
We had a really bad time about six months ago hut now things are ______.
A. looking upB. coming upC. making upD. turning up