题目内容：
时间序列综合预测模型中，其变动有正有负，正负可以抵销，故均值为零，其影响消失的变动是（ ）A.随机变动
B.循环变动
C.季节性变动
D.长期趋势
参考答案：
选择题：时间序列综合预测模型中，其变动有正有负，正负可以抵销，故均值为零，其影响消失的变动是（ ）
- 题目分类：社会调查方法
- 题目类型：选择题
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A.随机变动
B.循环变动
C.季节性变动
D.长期趋势
A.随机变动
B.循环变动
C.季节性变动
D.长期趋势
Idecide to concentrate all my efforts ___ finding
Idecide to concentrate all my efforts ___ finding somewhere to live A.in B.at
There was nothing special about this film — it was
There was nothing special about this film — it was only ______. A.particular
The commander said that two________ would be sent
The commander said that two________ would be sent to the Iraqi front the next da
图10中，直线BC为（ ）
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I`d have give the rest of my life for a single dul
I`d have give the rest of my life for a single dulp of water.A. i`d like to give