Passage 2
People all over the world today are beginning to hear and learn more and more about the problem of pollution. Pollution is caused either by man’s release of completely new and often artificial (人造) substances into the environment, or by releasing greatly increased amounts of a natural substance (物质), such as oil from oil tankers into the sea. Whatever its underlying reasons, there is no doubt that much of the pollution caused could be controlled if only companies, individuals and governments Would make more efforts. In the home there is an obvious need to control litter and waste. Food comes wrapped up three or four times in packages that all have to be disposed off drinks are increasingly sold in bottles or tins which cannot be reused. This not only causes a litter problem, but also is a great waste of resources, in ter A. people would pay more attention to the problem B. governments would take effective measures C. all sides concerned would take more efforts D. farmers would use less artificial fertilizers [单选题]2.153.
集中器、采集器应可与多种标准通信单元匹配,完成数据采集的各项功能。集中器、采集器应满足与通信单 元直接交互命令响应时间不大于( )。 A.5s B.6s C.8s D.10s [填空题]限高防护架设置净高:限高架横梁底至路面应低于桥涵下净高( ),并与“限高”警示标志一致。
[多选题]红外热成像对检测环境的要求有()。
A.检测目标及环境的温度不宜低于5℃如果必须在低温下进行检测应注意仪器自身的工作温度要求同时还应考虑水汽结冰使某些进水受潮的设备的缺陷漏检。 B.空气湿度不宜大于85%不应在有雷、雨、雾、雪及风速超过0.5m/s的环境下进行检测。若检测中风速发生明显变化应记录风速必要时修正测量数据。 C.室外检测尽量选择在日出之前、日落之后或阴天进行 D.室内检测宜闭灯进行被测物应避免灯光直射 [填空题]络合滴定中αMY(H)越大,K’M值相应(),pM突跃就越()。
[判断题]电气设备的绝缘水平是根据避雷器的残压来确定的。( )
A.正确 B.错误 [判断题]《电能计量装置技术管理规程》(DL/T 448-2016)规定, 为提高低负荷计量的准确性,应选用过载6倍及以上的电能表。
A.正确 B.错误 [单选题]在茶艺服务接待德国客人时,不要向其推荐( )作为茶点。
A.瓜子 B.开心果 C.核桃 D.果脯 [简答题]现场搅拌站装运提升设备主要用于提升哪些材料?
[多选题] 装运电杆、变压器和线盘应( ),防止滚动、移动伤人。
A. 绑扎牢固,并用绳索绞紧 B. 水泥杆的周围应塞牢 C. 线盘的周围应塞牢 D. 至少四人装运 [判断题]调控机构负责监控范围内变电站设备监控信息(包括输变电设备状态在线监测信息)的接入、变更和验收工作;输变电设备运维单位配合做好相关工作,保证遥测、遥信、遥控、遥调信息的正确性。
A.正确 B.错误 [单选题]影响外周阻力的主要因素是
A.血液粘滞度 B.血管长度 C.小动脉和微动脉口径 D.血流量 E.血流速度 [单选题][098]扒镐窝时宽度:扒至距待捣固的轨枕侧面约( )
A.A、A.50mm B.B、B.80mm C.C、C.100mm D.D、D.120mm [单选题]以下关于地铁、轻轨公司的职业健康安全方针的说法正确的是( )。
A.每年进行一次更新 B.随时变化,及时更新 C.由公司领导制定,不可随意更改 D.由部门领导制定,每三年由员工参与进行更改 [单项选择]
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