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【单选题】
一个垄断企业以12美元的价格销售8单位产品,以13美元的价格销售7单位产品,则与8单位对应的边际收益是( )。A.
5美元；
B.
12美元；
C.
1美元；
D.
6美元。
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举一反三
【单选题】The opening stance is
A.
another name for the first round of concessions
B.
the first price that a buyer quotes to a seller
C.
the attitude to adopt during the negotiation
D.
a package of concessions
【单选题】The opening stance is
A.
another name for the first round of concessions.
B.
the first price that a buyer quotes to a seller.
C.
the attitude to adopt during the negotiation.
D.
All of the above describe the opening stance.
【单选题】William ’ s mother was_______.
A.
An English woman
B.
A French woman
C.
a married French woman
D.
No one knows
【单选题】听力原文：W: My mother will be coming to visit us over the weekend, dear. It's been quite some time since she last saw her granddaughter. M: Well, it will be a little crowed, but I've really missed Seeing ...
A.
The man's mother.
B.
The man's mother -in-law.
C.
The child's mother.
D.
The woman's mother-in-law.
【简答题】多模光纤和单模光纤的包层外径相同,都是( )μm。 多模光纤的纤芯直径比单模光纤的纤芯直径大,其中,多模光纤的纤芯直径为( )μm,单模光纤的纤芯直径为( )μm
【简答题】stance
【单选题】下列对作者在文中提 到 的 关于民族性格研究的说法中 ,不符合文意的一项是 ______
A.
对民族性格的研究中，只要关注该民族人民的活动和实践。
B.
要弄懂在他们看来何为好何为坏。
C.
要弄懂在他们看来何为正义何为非正义。
D.
要弄懂在他们看来何为美何为不美。
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