某患者,在正中位时,其下颌切牙切缘咬在上颌切牙舌面的中1/3,应诊断为()。
A.Ⅰ°深覆
B.Ⅰ°深覆盖
C.Ⅱ°深覆
D.Ⅱ°深覆盖
E.Ⅲ°深覆
参考答案:A
曲柄是组成曲轴的基本单元,曲柄的数目必定等于气缸数目。()
-When shall we go to Hong Kong for holiday?
- I am not sure yet. _______ this Sunday ______ next Saturday is ok.
A.Neither; nor
B.Both; and
C.Either; or
D.Not only; but also