单项选择题

假定消费者的偏好序如下：A组合比B组合好，B组合比C组合好，A和C组合一样好，则这个消费者的偏好序( )。
A．违反了完备性定理
B．违反了反身性定理
C．违反了传递性定理
D．没有违反任何定理

A.违反了完备性定理

B.违反了反身性定理

C.违反了传递性定理

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单项选择题

W：Charles，I want to ask if you know anything about hotels on the Costa Brava.M：Why？No，I’m afraid I can’t be very much help to you there.W：Well，it’s just that we’ve been thinking of taking the family to Spain this summer and at this rather late stage we’re trying to organize ourselves a suitable hotel.But I thought that you’d been to the Costa Brava.M：It’s certainly a bit late.But have you looked at the ads？W：Well，yes.As a matter of fact I was reading one ad only this morning in the Sunday paper which sounded marvelous.M：For a hotel？W：Yes.Just outside Barcelona.It said that this hotel war right on the beach，and that’s essential as far as we’re concerned.M：I know just what you mean.W：And all the rooms have balconies facing the sea and overlooking the beach.M：Expensive？W：No.That war the remarkable thing about it.You know，even allowing for a bit of exaggeration in the ad，it seemed to have a lot to offer.M：Which is unlikely with yours，from the sound of it.W：Well，yes，but you can never tell，can you？And the food’s good.M：Of course.The only way to find out for certain is to go and try it.And that’s taking rather a risk.W：Yes，I agree with you.Where are Joan’s family are going to spend summer？（）

A．Italy.
B．Portugal.
C．Costa Rica.
D．Spain.

单项选择题

张、钱、孙、李在比赛前预测自己的名次。张说：“我绝不是最后。”钱说：“我不是第一，也不是最后。”孙说：“我肯定是第一。”李说：“我是最后。”结果出来后，没有并列名次，只有1个选手猜错了。请问谁猜错了？（）

A.张
B.钱
C.孙
D.李

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