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One-room Schools One-room schools are part of the heritage of the United States, and the mention of them makes people feel a vague longing for "the way things were". One-room schools are an endangered species (濒于灭绝的物种), however. For more than a hundred years, one-room schools have been systematically (系统地) shut down (关闭) and their students away to centralized schools. As recently as 1930 there were 149, 000 one-room schools in the United States. By 1970 there were 1, 800. Today, of the nearly 800 remaining one-room schools, more than 350 are in Nebraska. The rest are scattered through a few other states that have on their road maps wide-open spaces between towns. Now that there are hardly any left, educators are beginning to think that A. need to be shut down. B. are the best in Nebraska. C. are a good example of the good old days. D. provide good education. [判断题]测量带电线路导线对地面、建筑物、树木的距离以及导线与导线的交叉跨越距离时，禁止使用普通绳索、线尺等非绝缘工具。
A.正确 B.错误 [单选题]下列关于毒品犯罪说法错误的是( )。
A.刘某将 100 克海洛因藏在车内欲运往外地。在途中被民警发现车内藏毒品后,掏出匕首抗拒抓捕, 将民警刺成重伤。对刘某应当认定为运输毒品罪中“以暴力抗拒检查,情节严重”的加重情节 B.朱某合法经营药厂,未办理许可证明购买易制毒化学品用于合法生产药物。如其未及时补办许可证,则 构成非法买卖制毒物品罪 C.某县民政局干部谭某将海洛因冒充头痛粉诱骗李某吸食。谭某的行为属于欺骗他人吸毒罪“情节严重” 的情形 D.高某托王某为其购买 10 克海洛因用于自己吸食。王某帮高某购买后又原价卖给高某。王某的行为构成非法持有毒品罪 [简答题]市场需求环境
[单选题]电气设备冷备用状态指设备的(),要合上刀闸和开关后才能投入运行
A.开关在打开位置 B.开关和刀闸均在打开位置 C.刀闸在打开位置 [判断题]安全管理的重点是对事故的调查处理。( )
A.正确 B.错误 [单选题]演练工作场地保障根据演练方式和内容,选择合适的演练场地。演练场地应满足演练活动需要,避免影响()和公众正常生产、生活。
A.政府 B.社会 C.企业 [单项选择]被称为“阳脉之海”的是
A. 任脉 B. 督脉 C. 冲脉 D. 带脉 E. 阳跷脉 [单选题]有绝缘层的架空电力线路与三级加油站的柴油埋地油罐、通气管管口、加油机的安全间距为( )。 [ 难]
A.5 米 B. 6 米 C. 0.5 倍杆高 D. 1 倍杆高 我来回答: 提交
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