[判断题]跌落式熔断器更换时，先拉中间相，后拉背风边相。-我要搜题网

[多选题]个体工商户办理结汇，需要提供以下哪些（）材料
A.合同
B.发票
C.报关单
D.物流公司出具的运输单据

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[单选题]客货共线铁路，站内货物线与货物线线间的最小距离规定为( )。
A.5500mm
B.5000mm
C.4600mm
D.3600mm

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[填空题]一摩尔葡萄糖经糖的有氧氧化可生成()摩尔丙酮酸，再转变为()摩尔乙酰CoA进入三羧酸循环。

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[简答题]世界上最长的叙事诗是：

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[单项选择]

Most of-us are used to seasons. Each year, spring follows winter, which follows au-tumn, which follows summer, which follows spring. And winter is colder than summer.But the earth goes through temperature cycles over much longer periods than those that we experience. Between 65,000 and 35,000 years ago, the planet was much colder than it is now. During that time the temperature also changed a lot, with periods of warming and cooling. Ice melted during the warm periods, which made sea levels rise. Water froze again during the cold periods.
(77) A new study from Switzerland sheds light on where ice sheets melted during the ice age. It now seems that the ice melted at both ends of the earth, rather than just in ei-ther northern or southern regions.
This surprised the researchers from the University of Bern. (78) Scientists have long assumed that most of the ice that melted was in the Northern hemisphere (半球) during the 30,000-year long ice age. That be
A. most of the ice melted in the Northern hemisphere
B. most of the ice melted in the Southern hemisphere
C. The North Pole is colder than the South Pole
D. The South Pole is colder than the North Pole

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[单项选择]下列指数中，( )是通过确定同度量因素，把不能同度量的现象过渡为可以同度量的现象，采用科学方法计算出两个时期的总量指标并进行对比而形成的指数。
A. 定基指数
B. 综合指数
C. 环比指数
D. 数量指标指数

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[单选题]对存在重大事故隐患的生产经营单位做出停产停业、停止施工、停止使用的决定，生产经营单位拒不执行，有发生生产安全事故的现实危险的，在保证安全的前提下，经本部门主要负责人批准，负有安全生产监督管理职责的部门可以采取通知有关单位停止供电、停止供应民用爆炸物品等措施，()生产经营单位履行决定。
A.要求
B.督促
C.强制

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[单选题]"煤气安全“三项制度”是指安全确认制度、安全检测制度和( )。
A.安全监护制度
B.安全检查制度
C.安全培训制度"

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[填空题]风力侵蚀强度可分为（）、中度风蚀、（）和非常严重风蚀四级。

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[多选题]高架绝缘斗臂车操作人员应服从工作负责人的指挥，作业时应注意( )及( )。
A.周围环境
B.液压油量
C.支腿情况
D.操作速度

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[判断题]当酵母用量确定时，温度越高，则发酵时间就越长。
A.正确
B.错误

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[判断题]盲板抽堵作业是指在设备、管道上安装和拆卸盲板的作业。( )
A.正确
B.错误

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[简答题]问题同上