韦氏环位于()
A．鼻咽、口咽、舌根
B．颈椎
C．下咽、喉
D．上下颌骨
E．甲状腺
参考答案：A
He gets up early and ______ breakfast. [ ]
A. have a quick
B. has quick a
C. has a quick
D. have quick
脊髓灰质炎顿挫型的病程终止于哪一病期（）
A.潜伏期
B.前驱期
C.瘫痪前期
D.瘫痪期
E.恢复期
