问题
问答题 简答题
简述在绘制零件图时，视图选择的基本要求。
答案
参考答案：
视图选择的基本要求是：①第一，对零件各部分的形状和相对位置的表达要完整、清晰；②第二，要便于看图和画图；③必须根据零件的形状，加工方法及其在机器或部件上的位置和作用，合理地选择主视图和其他视图。
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简述在绘制零件图时，视图选择的基本要求。
参考答案：
视图选择的基本要求是：①第一，对零件各部分的形状和相对位置的表达要完整、清晰；②第二，要便于看图和画图；③必须根据零件的形状，加工方法及其在机器或部件上的位置和作用，合理地选择主视图和其他视图。
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| Do you have the ability to live cheaply? Now here's a true story of an American girl, Sarah. 1 Sarah left university, she began to live in New York City on her own. She 2 a job in a publishing house, but the salary (薪水) was 3 $30, 000 a year. Her parents thought her life would be hard, but Sarah 4 live on her salary and still saved $5, 000 in a year. How was that 5 in one of the most expensive cities in the world? Cheap living 6 starts with keeping the big cost small. For most people, that 7 housing. So Sarah chose to share a flat with three other friends. Her next biggest cost was 8 . When she ate out, she went to cheap restaurants. 9 she bought a $9.99 whole chicken at a local restaurant. She then 10 the chicken bones (骨头) home and made soup out of them. Nowadays young people often 11 a lot of money on entertainment (娱乐). But Sarah said, "I enjoy walking 12 in New York City. I love going to museums and parks." Did Sarah feel poor 13 cheap living? Not really. She even managed to take two trips, one to the Netherlands, 14 to Portland. "Don't think of saving money as something 15 . It's a kind of game," said Sarah. | ||||
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