破伤风前驱期不应有的症状是( )
A．烦躁、打呵欠
B．咀嚼无力
C．张口困难
D．乏力、多汗
E．头痛、头晕
参考答案：C
You ______ include this section. It's not necessary.
A．wouldn't
B．couldn't
C．don't need
D．don't have to
不属于牙源性颌骨囊肿的为（）
A.始基囊肿
B.甲状舌管囊肿
C.角化囊肿
D.根尖周囊肿
E.含牙囊肿
