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【单选题】
根据弯折的需求曲线模型(齐模型)的有关内容，下列说法中的那一种是正确的()A.
该模型假定：当行业中的一个寡头厂商提高价格时，其他寡头厂商一定会跟着他提高价格
B.
该模型假定：当行业中的一个寡头厂商降低价格时，其他寡头厂商并不会跟着他降低价格
C.
该模型可以说明为什么均衡价格是刚性的(即厂商不肯轻易变动价格)，而并不能说明均衡价格是如何决定的
D.
在该模型中，寡头厂商的边际收益曲线是连续的
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举一反三
【单选题】Ma Dong didn't write out the right answer, _____. [ ]
A.
neither did I
B.
neither didn't I
C.
I'm too
D.
either I
【单选题】听力原文：M: Didn't I tell you? I retired on Friday. W: Really! I didn't think you'd be retiring for another five years or so. M: Well. I'll be seventy then, you know. W: Well. I never! I thought you were ...
A.
In his fifties.
B.
In his sixties.
C.
Seventy.
D.
Seventy-five.
【简答题】最安全,经济的营养补给途径是
【简答题】A．warnings B．clues C．symbols D．evidences
【单选题】— I plan to go out for a trip, but I'm afraid I don't know the ______. — A map is helpful, I think. [ ]
A.
price
B.
way
C.
time
【单选题】According to the (literature) in this field, expert (evidences) originally (appeared) in England, and later (got widen used) in the Commonwealth countries.
A.
literature
B.
evidences
C.
appeared
D.
got widen used
【简答题】和物体在力的方向上发生的 ,是做功的两个不可缺少的因素。
【单选题】—I’m sorry, but I didn’t mean ____ out your secret. —But you know, letting out secret means ____ one’s feelings.
A.
to let; to hurt
B.
letting; hurting
C.
to let; hurting
D.
letting; to hurt
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