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报纸编辑工作
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()是依靠工作腔容积变化吸排液体的。
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关于心肌梗死合并心脏破裂,不恰当地描述是()
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进行自体骨髓移植时须考虑到()
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以类为单元组合教材,加强科学教育活动内容纵横联系的方法,这是采用了()选编科学教育内容。
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Shopping habits in the United States have changed greatly in the last quarter of the 20th century. (1) in the 1900s most American towns and cities had a Main Street. Main Street was always in the heart of a town. This street was (2) on both sides with many (3) businesses. Here, shoppers walked into stores to look at all sorts of merchandise: clothing, furniture, hardware, groceries. (4),some shops offered (5) .These shops included drugstores, restaurants, shoe-repair stores, and barber or hairdressing shops. (6) in the 1950s, a change began to (7) .Too many automobiles had crowded into Main Street (8) too few parking places were (9) shoppers. Because the streets were crowded, merchants began to look with interest at the open spaces (10) the city limits. Open space is what their car-driving customers needed. And open space is what they got (11) the first shopping centre was built. Shopping centres, or rather malls, (12) as a collection of small new stores (13) crowded city centres. 14 by hundreds of free parking space, customers were drawn away from (14) areas to outlying malls. And the growing (16) of shopping centres led (17) to the building of bigger and betterstocked stores. (18) the late 1970s,many shopping malls had almost developed into small cities themselves. In addition to providing the (19) of one stop shopping, malls were transformed into landscaped parks, (20)benches, fountains, and outdoor entertainment. 请在17处填上正确答案()
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喝黑茶会影响睡眠吗?
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急性腹膜炎的主要体征是()
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“劳动创造美”著名观点是谁提出来的()
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某大型变压器发生故障,应跳断路器,若高压断路器失灵,则应启动断路器失灵保护,因此瓦斯保护、差动保护等均可构成失灵保护的启动条件