壁厚大于16mm的管子焊前应预热，焊接后应对焊缝及附近表面进行( )处理。 A．预 发布时间：2017-05-05 16:58 │ 来源：www.tikuol.com 题型：多项选择题 问题： 壁厚大于16mm的管子焊前应预热，焊接后应对焊缝及附近表面进行( )处理。A．预膜B．钝化C．酸洗D．油清洗
题型：多项选择题 阅读下面的短文，根据其内容从所给的12个单词或短语中选择10个，并以其适当的形式填空。anything, interest, own, something, some, like, all, her, have, the others, library, so Lucy is a well-known librarian in her hometown. She loves the (1)________. It's like her secondhome. There are so many (2)________ books there. Each one has its (3)________ secrets. Each one has (4)________ to teach and share. Some (5)________ beautiful pictures. (6)________ have interestingstories. To Lucy, books are (7)________ her good friends. At the library, Lucy has friends (8)________around her. Lucy is always ready to help people, (9)________ the staff at the library all like her. They help (10)________ choose books for the readers. 查看答案