支托的长度应为磨牙面近远中径的()
A.1/4
B.1/3
C.1/2
D.2/3
E.3/4
参考答案:A
He looked ________ at the news that his favorite team had lost the game and felt ________ that Martin should have taken part in it.
A.sad;strong
B.sadly;strong
C.sad;strongly
D.sadly;strongly
根据基牙倾斜的方向和程度不同,导线可分三型,正确的是()
A.基牙向缺隙侧倾斜所画出的导线为I型导线
B.I型导线在基牙近缺隙侧距面近
C.基牙向缺隙相反方向倾斜时所画出的导线为Ⅱ型导线
D.Ⅱ型导线在远缺隙侧距面远
E.基牙近远缺隙侧均无明显倒凹或基牙向近远中倾斜时所画的导线为Ⅲ型导线