问题
问答题 简答题
人身触电的紧急救护措施有哪些？
答案
参考答案：
1）将触电者迅速脱离电源；2）紧急救护。
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人身触电的紧急救护措施有哪些？
参考答案：
1）将触电者迅速脱离电源；2）紧急救护。
Many objects that people use each day started with a simple idea. These objects have often changed the way we 46 . Some help us to do a job more 47 . Others fill a need or solve a problem. In 1858, Lipman had such an 48 . He took out a pencil, a piece of paper, 49 an eraser. Then he began to write. Sometimes he needed to 50 a word. Each time he had to search under his books and papers to 51 the eraser. “ I wish my eraser would stay in one 52 !” he said. Then Lipman had his simple idea. He 53 a groove(凹槽) in one end of the pencil. He glued(粘牢) the eraser into the groove. Lipman had solved his problem. Later he thought that others might like to have such a pencil. So he sold his 54 .Some pencils with erasers were 55 . His design earned $ 100000.
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