{{B}}Pushbike Peril{{/B}} Low speed bicycle crashes can badly injure —or even kill —children if they fall onto the ends of the handlebars so a team of engineers is redesigning the humble handlebar in a bid to make it safer. Kristy Arbogast, a bioengineer at the Children’s Hospital of Philadelphia in Pennsylvania, began the project with her colleagues after a study of serious abdominal injuries in children in the past 30 years showed that more than a third were caused by bicycle accidents. "The task was to identify how the injuries occurred and came up with some countermeasures," she says. By interviewing the children and their parents, Arbogast and her team were able to reconstruct many of the accidents and identified a common mechanism responsible for serious injures. They discov A. it is not easy to persuade manufacturers to adopt the new design B. the team of engineers has not found any countermeasures C. children like to ride bicycles at a very low speed D. a lot of children were killed in bicycle accidents in the past 30 years [单项选择]从剖面观察,牙可以分为
A. 牙冠、牙髓、牙本质、牙骨质 B. 釉质、牙本质、牙骨质、牙髓 C. 牙根、牙髓,牙本质、牙骨质 D. 牙根、牙颈、牙髓 E. 釉质、牙根,牙颈 [判断题]
{{B}}Part A{{/B}} {{I}} You will hear an introduction to Florence Nightingale. As you listen, answer Questions 1 to 10 by circling True or False. You will hear the conversation ONLYONCE. {{B}} You now have 1 minute to read Questions 1 to 10.{{/B}}{{/I}} Honours had been intended on Florence. [判断题]审计机构应当按规定程序向被审计对象通报审计结果,并督促其整改。被审计对象应采取有效措施进行整改并追责,及时报告整改情况,并承担未对审计发现问题采取改进措施所产生的责任和风险。
A.正确 B.错误 [单项选择]《素问·阴阳应象大论》曰:“能知七损八益,则二者可调。”“二者”是指()
A. 气血 B. 脏腑 C. 阴阳 D. 表里 E. 虚实 [单项选择]路由器命令“Router(config)#access-list.1 permit 192.168.1.1”的含义是______。
A. 不允许源地址为192.168.1.1的分组通过,如果分组不匹配,则结束 B. 允许源地址为192.168.1.1的分组通过,如果分组不匹配,则检查下一条语句 C. 不允许目标地址为192.168.1.1的分组通过,如果分组不匹配,则结束 D. 允许目标地址为192.168.1.1的分组通过,如果分组不匹配,则检查下一条语句 [单选题]杜仲药材中的降压成分是
A.松脂醇二葡萄糖苷 B.白桦脂醇 C.杜仲胶 D.桃叶珊瑚苷 E.β-谷甾醇 [判断题]滑车的缺陷应及时焊补补强。( )
A.正确 B.错误 [单项选择]螺杆泵开启前对泵进行盘车操作正确的是()
A. 对泵盘车90度无卡阻就可启动泵 B. 对泵盘车180度无卡阻就可启动泵 C. 不用对泵盘车即可启动泵 D. 对泵盘车2~3周无卡阻就可启动泵 [单选题]亚里士多德评价苏格拉底“有两种东西完全归功于他”,是指( )
A.归纳、定义 B.归纳、讥讽 C.讥讽、定义 D.助产术、归纳 [判断题]密码保管不善属于操作失误的安全隐患。()
A.正确 B.错误 [单项选择]关于经行情志异常的叙述,下列错误的是()
A. 情志异常随月经周期反复发作 B. 多在行经前出现证候 C. 持续时间可达5~10天 D. 经净后情志不能渐复正常 E. 平素有情志不舒史 [多选题]在冗余系统(双/多机、双/多节点、双/多通道或双/多电源)中将检修设备切换成非主用状态时,应确认其余( )或( )正常运行。
A.主机 B.节点 C.通道 D.电源 [多选题]同一张工作票多点工作,工作票上的工作地点、()应填写完整。不同工作地点的工作应分栏填写。
A.线路名称 B.设备双重名称 C.工作任务 D.安全措施 [单选题]工务段()应对车间、工区经常保养的质量和数量进行现场抽查核实,根据抽查结果进行考核。
A.每旬 B.每月 C.每季度 D.每半年 [单选题]由于( )变化时,阀杆上端受到阀盖的限制,阀杆只能向下膨胀使闸板阀开启不灵活。
A.压力 B.流量 C.温度 D.介质 我来回答: 提交
|