问题
单项选择题
统计分析包括()
A．参数估计和假设检验
B．统计描述和统计推断
C．集中趋势指标和离散取值指标的计算
D．统计描述和假设检验
E．统计描述和参数估计
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
统计分析包括()
A．参数估计和假设检验
B．统计描述和统计推断
C．集中趋势指标和离散取值指标的计算
D．统计描述和假设检验
E．统计描述和参数估计
参考答案：B
American people like to ____“Thank you” when（当----的时候） others help them or say __ to them. Many Chinese people do so, ____. It is a very ____. You must say “Thank you” when someone passes(传递) you something on the table, when someone ____ the door open for you, when someone says you do your work ____, or you buy a nice thing or your city is ____. “Excuse me” is another sentence（句子）they often say. When you hear someone say “Excuse me” ____ you, you know he wants to pass you without touching（接触）you. If you want ____ others, say “Excuse me” first, and then begin talking. Let/s ____“Thank you: and “Excuse me” from now.
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