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保证人的禁止条件有哪些？
【案例】某工程的混凝土分项工程量为850m3，混凝土分项工程的人工费为100元／m3，材料费为300元／m3，机械费为50元／m3，管理费为分项工程人、材、机之和的10%，利润率为5%，措施费以分部分项工程费的20%计算，规费以分部分项工程费和措施费的3%计，综合税率为3.41%。问题：1．计算该混凝土分项工程的单价。2．计算该混凝土工程的措施费。3．计算该混凝土工程的造价。问题解析：本案例主要考察分项工程的单价、措施费和工程造价的概念和计算。分项工程的单价构成只计算人工费、材料费、机械费、管理费和利润；而造价包括分部分项，工程项目、措施项日、其他项目、规费和税金。
手工钨极氩弧焊操作者应随时佩戴静电防尘口罩；操作时，尽量减少高频用电时间，连续工作不得超过（）小时。
据《素问·六节藏象论》所言，"天食人以五气，地食人以五味，五气入鼻"，藏于（）
挤压伤切开减压的指征中，错误的是（）。
“古诗十九首”的编选者是（）。
脑干听觉诱发电位的Ⅲ波代表的神经发生源主要位于（ ）。
转向架总成中除电机外所用轴承有哪些，分别写出其型号及轴箱轴承型号的含义。
阅读理解：请根据短文内容，为每题确定l个最佳选项。 The National Trust。 The National Trust in Britain plays an increasingly important part in the preservation for public enjoyment of the best that is left unspoiled of the British countryside. Although the Trust has received practical and moral support from the Government, it is not a rich government department. It is a voluntary association of people who care for the unspoiled countryside and historic buildings of Britain. It is a charity which depends for its existence on voluntary support from members of the public. Its primary duty is to protect places of great natural beauty and places of historical interest. The attention of the public was the first drawn to the dangers threatening the great old houses and the castles of Britain by the death of the Lord Lothian, who left his great seventeenth-century house to the Trust together with the 4500-acre park and estate surrounding it. This gift attracted wide publicity and started the Trust’s “Country House Scheme” Under this scheme, with the help of the Government and the general public, the Trust has been able to save and make accessible to the public about 150 of these oil houses. Lats year, about 1.75 million people paid to visit these historic houses, usually at a very small charge. In addition to country houses and open spaces, the Trust now owns some examples of ancient wind and water mills, nature reserves, 540 farms and nearly 2500 cottages or small village houses, as well as some complete villages. In these villages no one is allowed to build, develop or disturb the old village environment in any way and all the houses are maintained in their original 16th century style. Over 4,000 acres of coastline , woodland, and hill country are protected by the Trust and no development or disturbances of any kind are permitted. The public has free access to these areas and is only asked to respect the peace, beauty and wildlife. Over the past 80 years the Trust has become a big and important organization and an essential and respected part of national life. It helps to preserve all that and of historical significance not only for future generations of Britons but also for the millions of tourists who each year invade Britain in search of a great historic and cultural heritage. We can infer from Paragraph 2 that Lord Lothian_______.
同接待团体游客相比，接待散客对（）要求更高。
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