Traffic statistics paint a gloomy
picture. To help solve their, traffic woes, some rapidly growing US cities have
simply built more roads. But traffic experts say building more roads is a
quick-fix solution that will not alleviated the traffic problem in the long run.
Soaring land costs, increasing concern over social and environmental disruptions
caused by road building, and the likelihood that more roads can only lead to
more cars and traffic are powerful factors bearing down on a 1950s-style
construction program. The goal of smart-highway technology is to make traffic systems work at optimum efficiency by treating the road and the vehicles traveling on them as an integral transportation system. Proponents of the advanced technology say electronic detection systems, closed-circuit television, radio-communication, ramp meter A. develop sophisticated facilities on the interstate highways B. accelerate the speed of the transportation C. optimize the highway capabilities D. improve communication between drivers and the traffic monitors [单选题]男,54岁,高空坠落摔伤一小时,左上腹疼痛伴轻度恶心、心慌、出冷汗。查体血压85/52mmHg,心率120次/分,左侧胸壁皮肤挫裂伤,左上腹压痛,反跳痛不明显局限性腹肌紧张,有移动性浊音。对该患者最应该做的检查是
A.腹部立位片 B.血尿常规检查 C.超声波检查 D.血尿淀粉酶检查 E.腹腔穿刺 [单选题]10(6)千伏高压供电装见总容量1000kV对以下的客户检查周期为每两年检查一次。
A.正确 B.错误 [填空题]各单位应当对作业人员进行上岗前职业卫生培训和在岗期间的( )职业卫生培训,普及防暑降温、中暑急救等职业卫生知识。
[单项选择]生命是环境“逼出来”的,因而生为环境的奴隶,它最多只是“主动地”附属于环境。谁要考察一种生命形式,不妨先去考察它寄身的环境,否则就会对生命的“怪异”感______。
A. 震惊 B. 疑惑 C. 惊诧 D. 惊异 [单选题]某地最高、最低轨温温差为80℃,60kg/m、25m标准轨的普通线路接头螺栓扭矩应达到( )。
A.500N?m B.700N?m C.900N?m D.1100N?m [判断题]为了保证工程进度,对发生的事故采取隐瞒不报的做法,可以谅解。( )
A.正确 B.错误 [填空题]《南昌局集团公司普速旅客列车车门管理规定》(南铁客〔2020〕239号)中规定列车站停作业时,确因作业需要须打开非旅客乘降的车门时,按照“()”的原则,负责做好监护,防止旅客乘降,作业完毕及时将车门锁闭并确认。
[判断题]减压器冻结时应用热水或蒸汽解冻,禁止用火烤。
A.正确 B.错误 [多选题]动火作业间断,应符合下列要求( )
A.动火作业间断,动火执行人、监护人离开前,应清理现场,消除残留火种。 B.动火执行人、监护人同时离开作业现场,间断时间超过40min,继续动火前,动火执行人、监护人应重新确认安全条件。 C.一级动火作业,间断时间超过2.0h,继续动火前,应重新测定可燃性、易爆气体含量或粉尘浓度,合格后方可重新动火。 D.一级、二级动火作业,在次日动火前必须重新测定可燃性、易爆气体含量或粉尘浓度,合格后方可重新动火。 [简答题]电缆线路径路,每( )检查一次。
[填空题]髂胫束劳损又可称为______,推拿治则是 ______。常选用______、______、 ______等手法治疗。
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