问题
单项选择题
正畸治疗中釉质脱矿的好发部位包括 ()
A.下颌前磨牙区
B.下颌尖牙
C.上颌前牙
D.ABC都是
E.ABC都不是
答案
参考答案:D
正畸治疗中釉质脱矿的好发部位包括 ()
A.下颌前磨牙区
B.下颌尖牙
C.上颌前牙
D.ABC都是
E.ABC都不是
参考答案:D
从方框中选择正确答句,将其序号填入题前括号里。 | |
( ) 2. How did you go on your holiday? ( ) 3. What did you do on your holiday? ( ) 4. What did you do last weekend? ( ) 5. Did you have a good time on your holiday? |