题目内容
变形温度是提高金属塑性的一个重要因数，变形温度越高，金属塑性也越强。
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坯料加热的温度越高越便于锻造
燃料加热的优点是，燃料来源方便，费用比较低，对坯料适应性强。
有色金属不可用于锻造
Complete the following summary with the words from the passage.The son starts school and is going to start on his great 1) a__________ in the world. To her mother, the adventure will probably include wars, 2) t_________, and sorrows, and it takes 3) f_______, love, and courage to live in the world. Therefore, she writes a letter to World and asks World to treat her son 4) g_______. The mother hopes World would teach her son the following things:to look at the positive side of life;the 5) w_______of books;the eternal 6) m______ of all kinds of living things;never to cheat;to have faith in his own ideas;never to betray (背叛) his heart and soul;to 7) f______if he thinks he's right.Teach him to sell his 8）s________ and 9）i_________ to the person that offers the highest price, but never to put a price on his heart and soul.The mother asks World to do what he can do to teach er beloved nice little 10)f______.
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