表示某地6岁男孩体重的频数分布可用()
A.圆图
B.复式条图
C.线图
D.直方图
E.构成比条图
参考答案:D
Hello! Is that Mr Wang speaking?()
A.Yes. This is Mr Wang speaking.
B.Yes. Can I speak to Mr Wang?
C.Sorry, you'd better ask Mr Wang.
D.No, I can't speak.
课程计划就是教学计划。()