进行性头痛伴呕吐、视盘水肿、头痛往往在清晨加重，应考虑（）
A.颅内占位
B.偏头痛
C.颅内出血
D.颅内感染
E.高血压
参考答案：A
—Where's Sam?
—He ______ for France. [ ]
A. had left
B. has left
C. left
D. will leave
何谓包裹？
