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教学作为培养人的学校活动,其教育性有其必然性,其必然性的原因是()。
文献信息老化的主要度量指标有哪两个?两者有何异同?
斯金纳认为,处理非期望行为的合适方式是()。
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20处填上正确答案()
沿着乒乓球台边线边缘应有一条多少厘米宽的白线所环绕。()
风疹病毒有()
在园林景观工程建设项目中重点估算的内容是什么。()
根据《建设工程监理规范》规定,调解建设单位和施工单位的合同争议,处理费用和工期索赔是()的责任。
硬木门、窗扇应先钻眼后拧螺钉,孔径为螺钉直径的0.9倍为宜,眼深为螺钉长度的2/3。
下肢深静脉血栓形成( )。
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事故隐患分为一般事故隐患、较大事故隐患和重大事故隐患。
事故隐患分为一般事故隐患和()。
事故隐患分为一般事故隐患和重大事故隐患两种。
根据()的大小,事故隐患又可分为一般事故隐患和重大事故隐患。
事故隐患分为一般事故隐患和重大事故隐患。
生产经营单位应当依据定期组织()排查本*单位的事故隐患。对排查出的事故隐患,应当按照事故隐患的等级进行登记,建立事故隐患信息档案,,并按照职责分工实施监控治理。
生产经营单位应当依据定期组织()排查单位的事故隐患。对排查出的事故隐患,应当按照事故隐患的等级进行登记,建立事故隐患信息档案,并按照职责分工实施监控治理。
安全事故隐患分为()和重大事故隐患两种
《安全生产事故隐患排查治理暂行规定》中,将事故隐患分为一般事故隐患和()。