I'm sorry ______ that bad news.[ ]
A. hear
B. hearing
C. to hear
D. heard
答案:C
妊娠呕吐应首选()
A.砂仁
B.竹茹
C.吴茱萸
D.生姜
E.半夏
通过破裂孔的结构为()。
A.脑膜中动脉
B.颈内动脉和交感丛
C.咽升动脉脑膜支
D.嗅神经
E.眼动脉脑膜返支