问题
填空题
奥氏体不锈钢的焊后要快速冷却,以减小()在区停留时间,防止()。
答案
参考答案:敏化温度;晶体腐蚀
奥氏体不锈钢的焊后要快速冷却,以减小()在区停留时间,防止()。
参考答案:敏化温度;晶体腐蚀
选词填空。 | |
根据对话内容,用方框中所给词的适当形式填空。
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A:Do you have any 1 ? B:Yes.l hope l will be an animal doctor when I grow up. A:Why? B:Because I like animals very much and want to take care of 2 . A:That sounds 3 . B:What about you? A:I 4 to be a train driver. I like traveling very much. B:That way you will be able to travel for free. A:Yes.1 wish I 5 visit different places and make lots of friends. |