支配上颁尖牙牙髓及唇侧牙龈、黏膜、骨膜的为()
A.腭前神经
B.上牙槽前神经
C.上牙槽中神经
D.上牙槽后神经
E.鼻腭神经
参考答案:B
-Did your mother sleep well last night?
-She ________ have slept through all those noises.[ ]
A.mustn't
B.may not
C.can't
D.won't
下列疾病中哪一种不会引起尿流中断()
A.膀胱结石
B.膀胱憩室
C.膀胱肿瘤
D.膀胱异物
E.输尿管囊肿