| Early American industries depended
largely on skilled artisans working in small shops to serve a local market. But
the Industrial Revolution that started in England during the 18th century did
not take long to cross the Atlantic. It brought many changes to American
industry between 1776 and 1860. Because labor was scarce in the United States
and wages were high, employers welcomed any new method that could reduce the
requirement for labor. One key development was the introduction of the factory system, which gathered many workers together in one workplace and produced goods for distribution over a wide area. The first factory in the United States is generally date A. introduce the early period of industry development in the United States. B. how important the economic life is in the America society. C. the early development of American economy in 17th century. D. how difficult the early life was in the 18th century of America. [简答题]末端试水装置的作用主要是
[单选题]使用糖皮质激素治疗无效的疾病是：（ ）
A.过敏性紫癜 B.特发性血小板减少性紫癜 C.血小板无力症 D.淋巴瘤 E.骨髓瘤 [单项选择]所有消化液中最重要的是
A. 唾液 B. 胃液 C. 胰液 D. 小肠液 [判断题]阻碍人民警察依法执行职务的，应当从重处罚（）
A.正确 B.错误 [名词解释]后鳃类
[单项选择]下列关于城市环卫设施的表述，哪项是错误的 ( )
A. 生活垃圾填埋场应远离污水处理厂，以避免对周边环境双重影响 B. 生活垃圾堆肥场应与填埋或焚烧工艺相结合，便于垃圾综合处理 C. 生活垃圾填埋场距大、中城市规划建成区应大于1公里 D. 建筑垃圾可以与工业固体废物混合储运、堆放 [简答题]简述三月检该部件外观检查方法。
[单选题]变压器三相负载不对称时将不出现()电流。
A.正序负序 B.正序 C.负序 D.零序 [判断题]检修调度应于首列电客车出厂前2小时，按《运营时刻表》的计划提供当日上线运行的电客车车组号及《列车状态卡》（包括备用车）
A.正确 B.错误 [判断题]位移正杆可在线路带电情况下进行。 ( )
A.正确 B.错误 [单选题]隔离开关分合闸位置“双确认”监测系统应优先采用有线通讯方式将隔离开关位置信息传输至（ ）主机系统。
A.微机防误 B.一键顺控 C.监控系统 D.操作系统 我来回答: 提交
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