Word段落对话框包括的选项卡片有（）。
A.缩进和间距
B.字符间距
C.换行和分页
D.中文版式
参考答案：A, C, D
There was a teapot fashioned like a china duck, out of ____ open mouth the tea was supposed to come.
[ ]
A. which
B. its
C. that
D. whose
推断样本率所代表的总体率与总体率是否相等
A．样本率与总体率比较的目的B．配对计数资料的比较目的C．两个样本率比较的目的D．多个样本率作比较的目的E．将两个或多个样本构成比作比较的目的
