安装锅炉的技术文件，主要指锅炉产品出厂时附有的与安全有关的技术资料，至少包括( )
A．竣工图样
B．锅炉安装和使用说明书
C．产品合格证
D．无损检测报告
E．安全阀排放量的计算书
参考答案：B,C,D,E
解析： 安装锅炉的技术文件，主要指锅炉产品出厂时附有的与安全有关的技术资料，至少包括：①锅炉图样；②受压元件强度和安全阀排放量的计算书或计算结果汇总表；③锅炉产品质量证明书(包括产品合格证、主要受压部件材质证明书、无损检测报告、焊后热处理报告和水压试验报告等)；④锅炉安装和使用说明书。
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| Almost everyone likes apple pies in the USA. An apple pie is easy to make, so many people make it at home. You just need apples, flour (面粉), sugar, butter and spice s(调味品). To make an apple pie, first peel and cut the apples into pieces. Then mix them with spices and put them in a pie tin (罐). Next put butter, sugar and flour together. Put the mixture on the apple pieces and bake the pie for about 45 minutes. The smell of the apple pie is great. There are many different ways to make apple pies. Some families have their own secret (秘密) ways and don't tell other people about them. Pies made with berries( 浆果) are also very popular in America. But the apple pie perhaps (也许) is the dessert that everyone loves best. | |||||
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