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单项选择题

A.每一个局中人都知道的事情,就是共同知识B.一般的,假定支付为共同知识C.共同知识的假定要求局中人的计算能力……

下面关于共同知识的说法,正确的是(    )。
   A.每一个局中人都知道的事情,就是共同知识
   B.一般的,假定支付为共同知识
   C.共同知识的假定要求局中人的计算能力不是很强
   D.纳什均衡不需要共同知识的假定

A.每一个局中人都知道的事情,就是共同知识

B.一般的,假定支付为共同知识

C.共同知识的假定要求局中人的计算能力不是很强
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未分类题Broadly speaking, the Englishman is a quiet, shy, reserved person who is fully (1)_____ only among people he knows well. In the presence of strangers or foreigners he often seems inhibited, (2)_____ embarrassed. You have only to (3)_____ a com muter train any morning or evening to see the truth of this. Serious-looking businessmen and women sit reading their newspapers or dozing in a corner; no one speaks. In fact, to do so would seem most usual. (4)_____, there is here an unwritten but clearly understood code of behavior. which, (5)_____ broken, makes the person immediately the object of (6)_____. It is a well-known fact that the English have a (7)_____ for the discussion of their weather and that, given half a chance, they will talk about it (8)_____. Some people argue that it is because English weather (9)_____ forecast and hence is a source of interest and (10)_____ to everyone. This may be so. (11)_____ Englishmen cannot have much (12)_____ in the weathermen, who, after promising fine, sunny weather for the following day, are often proved wrong (13)_____ a cloud over the Atlantic brings rainy weather m all districts! The man in the street seems to be as accurate—or as inaccurate—as the weathermen in his (14)_____. The overseas visitors may be excused for showing surprise at the number of references (15)_____ weather that the English make to each other in the course of a single day. Very often conversational greetings are (16)_____ by comments on the weather. 'Nice day, isn't it?' 'Beautiful!' may well be heard instead of 'Good morning, how are you?'. (17)_____ the foreigner may consider this exaggerated and comic, it is worthwhile pointing out that it could be used to his advantage. (18)_____ he wants to start a conversation With an Englishman but is (19)_____ to know where to begin, he could do well to mention the state of the weather. It is a safe subject which will (20)_____ an answer from even the most reserved of Englishmen.A.entertainedB.relaxedC.amusedD.enlightened