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Which of the following are components of a time series analysis?i. Trendii. Seasonal variationiii. Cyclical variation

A. i and ii
B.i and iii
C. ii and iii
D.i, ii and iii

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Under which of the following circumstances would a multiplicative model be preferred to an additive model in time series analysis?

A. When accurate forecasts are required
B. When the trend is steady
C. When a model easily understood by non-accountants is required
D. When the trend is increasing or decreasing

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如要确诊大肠杆菌，常采用

A. 病毒分离鉴定
B. 细菌分离鉴定
C. 血液学检查
D. 免疫学检测
E. 病理剖检

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败血型禽大肠杆菌病在剖解上的特征是

A. 纤维素性心包炎、肝周炎
B. 肠粘膜出血
C. 脾脏肿大
D. 肺出血
E. 盲肠栓子

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刘某习惯每晚将垃圾袋放在家门口，邻居王某认为会招引苍蝇并影响自己出入家门。王某为此与刘某多次交涉未果，遂向法院提起诉讼，要求刘某不得将垃圾袋放在家门口，以保证自家的正常通行和维护环境卫生。关于本案的诉讼标的，下列哪一选项是正确的？

A. 王某要求刘某不得将垃圾袋放在家门口的请求
B. 王某要求法院保障自家正常通行的请求
C. 王某要求刘某维护环境卫生的请求
D. 王某和刘某之间的相邻关系

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Which of the following are components of a time series analysis?i. Trendii. Seasonal variationiii. Cyclical variation

A. i and ii B.i and iii C. ii and iii D.i, ii and iii

Under which of the following circumstances would a multiplicative model be preferred to an additive model in time series analysis?

如要确诊大肠杆菌，常采用

败血型禽大肠杆菌病在剖解上的特征是

A. i and ii
B.i and iii
C. ii and iii
D.i, ii and iii