良性高血压病按病程可分下列几期（）
A.增生期
B.功能期
C.变质渗出期
D.动脉病变期
E.内脏病变期
参考答案：B, C, E
We don''t plan to go to the concert, and so they don''t .
A．so do they
B．they don't too
C．neither don't they
D．they don't either
什么是手持设备？
