偏头痛的临床特点除外
A．搏动性头痛B．长期反复发作的头痛C．头痛程度较轻D．一侧头痛E．常伴意识障碍
参考答案：E
凭证保存之后，凭证的类别和编号仍可以修改。( )
Everything is good with your composition except that it is a little bit short.Please ________ it.[ ]
A. explore
B. express
C. expand
D. explain
