比较某地区解放以来三种病的发病率在各个年度的发展速度，应该绘制（）
A.直方图
B.圆图
C.普通线图
D.半对数线图
E.百分条图
参考答案：D
After graduation I went to Somalia. When I first set foot on _____ strange land, I didn't know what
the future had in _____ store for me. [ ]
A. 不填; a
B. the; the
C. the; 不填
D. the; a
班级常规管理的基本内容和要求是什么？
