题目内容
按照我国的技术要求，距离保护振荡闭锁使用（）方法。
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喷灯施工时，施工地点严禁放置易燃、易爆物品，并应配备()等消防器材。
在加工过程中，会重新人为加入某些食物的维生素和矿物质，但却未必和原来的一样健康。
随着燃料价格的上涨，购车者买车的想法正在改变。
Translation from English into Chinese Play is the principal business of childhood, and more and more in recent years research has shown the great importance of play in the development of a human being. From earliest infancy, every child needs opportunity and the right material for play, and the main tools of play are toys. Their main function is to suggest, encourage and assist play. To succeed in this they must be good toys, which children will play often, and will come back to again and again. Therefore it is important to choose suitable toys for different stages of a child’s development. In recent years’ research on infant development has shown the standard a child is likely to reach, within the range of his inherited abilities, is largely determined in the first three years of his life.
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