在下列关于华法林的描述中,错误的是()
A.口服吸收完全
B.体内、外均有效
C.体外无效
D.抗凝血作用出现慢
E.维持时间久
参考答案:B
—You can go to the classroom and ask Mary for help.
—She _______ be in the classroom. I have just seen her on the playground. [ ]
A. must
B. mustn't
C. can't
D. may
管理会计的职能有()
A、报告
B、组织
C、控制
D、评价
E、规划