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Passage1Questions 25 to 27 are based on the passage you have just heard.
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Ascott International is the largest serviced residential operator in the world. Managing the Ascott, the Somerset and Citadines brands in over 50 cities 41．across 23 countries, Ascott International is renowned for its charming hospitality 42．and luxurious residence. Each of brand has its unique attributes to satisfy the needs 43．of different guests. The Ascott Beijing is being strategically located in the heart of 44．the central business area in Chaoyang District. It is close to the China World 45．Trade Centre and has set among thriving retail and business districts. The residence 46．appeals to top executives who accustomed to discreet service and elegant living, 47．and provides with a comprehensive choice of apartments from one-bedroom suites 48．to duplex penthouses which ranging in size from 105 to 380 square meters. A wide 49．selection of dining choices in the building can caters to the different tastes of our 50．international guests. Grocery shopping is convenient with in a 24-hour mini-mart and 51．a complimentary shuttle bus to Wal-Mart and Carrefour. Business dealings become 52．easy here with wireless surfing zones set, a well-equipped business centre and function rooms, where video conferences can be held.
某企业生产某种商品的成本函数为C=a+bQ+cQ2，收入函数为R=ιQ-sQ2，其中常数a，b，c，ι，s都是正常数，Q为产量，求： 当税率为t时，该企业获得最大利润时的销售量；
患者，女性，42岁，既往胆囊炎病史5年，症状间断发作。1d前午餐后出现腹部剧烈疼痛，恶心、呕吐大量胃内容物，自觉腹胀。查体：体温38.3℃，脉搏 90/min，血压98/60mmHg。腹平软，剑突下有轻压痛，Murphy征(+)。血白细胞16.0×109/L，中性分叶粒细胞0.85，血淀粉酶1 000苏氏单位。 最可能的诊断是
Which of the following description is true about the organisation
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