2023九师联盟答案近期

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7.解：矩形的两条邻边确定，矩形就确定，第一步先确定“横边”，从5个点任选2个点可以组成一条“横边”，共有C号种情况；第二步再确定“竖边”，共有C?种情况，所以图中矩形共有C号×C10×6=60,选C.

L.C细节理解题。根据Bulgaria一节中“In the morning of January 1,children across Bulgaria go from houseto house offering to hit the adults on the back with decorated cherry branches(called Surwatschki)."年初一，保加利亚的孩子们可以用樱桃枝抽打大人。2.B细节理解题。根据Spain一节中“In Spain,when midnight arrives,you should eat 12 grapes(each eatenwith every strike of the clock).”可知答案。3.A推理判断题。根据Italy一节中“That's why shortly after Christmas,Italians rush to department storesacross the country in order to get their hands on some‘lucky'red underpants."及Brai一节中"Yellow formoney.red or pink for love,green for hope,and white for peace.And all the underwear should be brandnew!”可推断，在意大利及巴西，红色短裤很可能是最畅销的年货之一。