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Electric Backpack Backpacks (背包) are convenient. They can hold your books, your lunch, and a change of clothes, leaving your hands free to do other things. Someday, if you don’t mind carrying a heavy load, your backpacks might also power your MP3 player, keep your cell phone running, and maybe even light your way home. Lawrence C. Rome and his colleagues from the University of Pennsylvania in Philadelphia and the Marine Biological Laboratory in Woods Hole, Mass. , have invented a backpack that makes electricity from energy produced while its wearer walks. In military actions, search-and-rescue operations, and scientific field studies, people rely increasingly on cell phones, global positioning system (GPS) receivers, night-vision (夜视镜) gogg A. a small stream of water flowing naturally from the earth. B. the season of the year, occurring between winter and summer. C. the act or an instance of jumping or leaping. D. a length of metal wound around, which returns to its original shape after being pushed. [判断题]《全国安全生产专项整治三年行动计划》（安委[2020]3号），应推动企业定期开展针对高危工艺、设备、物品、场所和岗位等安全风险评估和危害辨识。
A.正确 B.错误 [判断题]公文处理的质量与效率是决定机关工作质量与效率的决定性因素。 ( )
[单项选择]The earliest controversies about the relationship between photography and art centered on whether photograph’s fidelity to appearances and dependence on a machine allowed it to be a fine art as distinct from merely a practical art. Throughout the nineteenth century, the defence of photography was identical with the struggle to establish it as a fine art. Against the charge that photography was a soulless, mechanical copying of reality, photographers asserted that it was instead a privileged way of seeing, a revolt against commonplace vision, and no less worthy an art than painting.
Ironically, now that photography is securely established as a fine art, many photographers find it pretentious or irrelevant to label it as such. Serious photographers variously claim to be finding, recording, impartially ob- serving, witnessing events, exploring themselves--anything but making works of art. They are no longer will- ing to debate whether photography is or is not a fine art, except to pr A. It was a means of making people happy. B. It was art for recording the world. C. It was a device for observing the world impartially. D. It was an art comparable to painting. [单项选择]咳嗽的病人何种证型应保持室温略低，湿度偏高（）。
A. 肺阴亏耗 B. 肝火犯肺 C. 风热犯肺 D. 风寒犯肺 E. 风燥伤肺 [单项选择]《中华人民共和国放射性污染防治法》规定，国家放射性污染防治标准由( )根据环境安全要求、国家经济技术条件制定。
A. 国务院环境保护行政主管部门 B. 国务院标准化行政主管部门 C. 国务院环境保护行政主管部门和国务院标准化行政主管部门 D. 国务院放射性主管部门 [判断题]CBTC列车能以ATO、ATP、RM以及NRM模式运行。
A.正确 B.错误 [多选题]颅内动脉瘤血管栓塞治疗的护理要点正确的有哪些?(
A.严密观察意识、瞳孔及生命体征变化 B.穿刺部位加压包扎制动12.小时,观察有无血肿。 C.使用抗凝药物要监测凝血功能 D.术后休息1.~2.天,避免情绪激动、紧张和剧烈运动。 E.鼓劲患者多饮水,促进造影剂排泄。 [单选题]《关于规范双管供风旅客列车总风系统漏风客运应急处置流程的通知》（客管电〔2016〕122号），运行途中，遇双管供风旅客列车总风系统漏风时，列车长接到车辆乘务员通知前方停车处理时锁闭全部厕所。关闭原则是（ ）。
A.“隔一闭二” B.“逐车闭一” C.“全车锁闭” D.“逐一打开” [单项选择]（）, the engine must be stopped immediately.
A. Should knocking occur B. If knocking occur C. Should if knocking occurs D. If occur knocking [判断题]电缆试验需拆除接地线时， 应在征得监护人员的许可后（根据调控人员指令装设的接地线，应征得调控人员的许可）， 方可进行。 工作完毕后立即恢复。
A.正确 B.错误 [单选题]法院宣告判决时，对于当事人的上诉权利是（）
A.必须告知 B.可以告知 C.不必告知 D.视情况而定 [单选题]工作前应检查所有的电流互感器和电压互感器的二次绕组应有永久性的且可靠的（_)接地。
A.二次 B.保护 C.一次 D.工作 E./ F./ [判断题]高速铁路设备发生故障，需在双线区间的一条线上道检查、处理设备故障时，本线应封锁、邻线列车限速120km/h及以下。×
A.正确 B.错误 [判断题]对不构成违反治安管理行为的民间纠纷，应当告知当事人向人民法院或者人民调解组织申请处理。
A.正确 B.错误 我来回答: 提交
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