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【多选题】
如果模型y t =b 0 +b 1xt +u t 存在一阶自相关，普通最小二乘估计仍具备（）。A.
线性
B.
无偏性
C.
有效性
D.
真实性
E.
精确性
拍照语音搜题，微信中搜索"皮皮学"使用
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【单选题】-- ______ do you think of the film?-- It's very good and I like it very much.
A.
How
B.
Which
C.
What
【单选题】奉献意愿是指：（）
A.
为了组织和长期利益，牺牲个人和短期利益的意愿。
B.
为了组织利益牺牲个人利益的意愿。
C.
为了短期利益牺牲长期利益的意愿。
D.
为了个人利益牺牲组织利益的意愿。
【单选题】关于支付意愿和受尝意愿的相关说法错误的是:
A.
支付意愿是为改善环境，消费者愿意支付的最大金额；
B.
支付意愿是为阻止环境恶化，消费者愿意支付的最小金额；
C.
受尝意愿是当环境改善政策终止时，作为补偿至少需要的金额；
D.
受尝意愿是当环境恶化，作为补偿至少必须的金额；
【简答题】 a film takes a long time and is very hard work. Writing the story for the film may take many weeks. Shooting (拍摄) the film often takes at least six months. Actors and camera men work from very ...
【简答题】Although it is very enjoyable, the film is too long.(翻译)
【单选题】Many people said that it was not a very serious film, but it was good ___________.
A.
control
B.
entertainment
C.
discussion
D.
fortune
【简答题】阅读理解。 a film takes a long time and is very hard work. Writing the story for the film may take many weeks. Filming the story being acted — or shooting the film as it is called — often takes at l...
【简答题】 a film takes a long time and is very hard work. Writing the story for the film may take many weeks. Filming the story is also called shooting the film.It often takes at least six months. Actors...
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