负责医疗机构药事管理工作的是
A．三日极量B．二日常用量C．二日极量D．三日常用量E．七日常用量
参考答案：C
□□÷6=6……1, □□÷□=3……3, 26÷□ =3……2
---How did your students express their thanks to you on Teachers’ Day?
---A gift together with many flowers _______ sent to me.
A．is
B．are
C．was
D．were
