问题
填空题
埋弧自动焊时,采用的主要接头形式是对接接头、T型接头和()。
答案
参考答案:搭接接头
埋弧自动焊时,采用的主要接头形式是对接接头、T型接头和()。
参考答案:搭接接头
完形填空。 | |||
Christmas 1___________ my favourite holiday. 2___________ a holiday, people 3___________ work. Children don't 4___________ school. Christmas is special. 5___________ ? Because we 6___________ Christmas trees, lights and Santa. He is a merry 7___________ . Children say he 8___________ toys on Christmas. We invite our family and friends 9___________ our house. We sing carols. 10___________ are happy on Christmas.
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