下列哪项是先天因素造成的错()。
A.四环素牙
B.楔状缺损
C.佝偻病
D.舌习惯
E.额外牙
参考答案:E
—Was it there you were away to see your friend off ?
—I’m not sure . But when I got back , it was gone .
A.that
B.which
C.while
D.where
腕尺管内通过的神经是:
A.同侧膝腱反射减弱或消失B.感觉减退在小腿上外侧及拇趾根部C.对侧膝腱反射减弱或消失D.肛门括约肌障碍E.外踝部及足背外侧感觉减退