Pushbike Peril
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 come 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 discovered that most occur when children hit an obstacle at a slow speed, causing them to topple over. To maintain their balance they turn the handlebars throu
A. it is not easy to persuade manufacturers to adopt the new design
B. the team of engineers has hot 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
| Psychologists say the one factor that
differentiates people who are creative from those who aren’t is belief-creative
people believe they are creative. To be creative, you simply have to believe and
act as if you are. Once you believe you are creative, you begin to find ideas
and to imagine all kinds of probable and improbable solutions. Here are a few techniques to help you get started looking for ideas you may already have in your mind. Play a different role. Suppose you want to improve your company’s training program. Play the role of another person. Write, from the perspective of that role, what changes the person would make. Record any interesting thoughts or new ideas. Randomly pick something and compare it with your problem. Open a dictionary and randomly, without looking, pick a word. Force yourself to ma A. to learn from such creative persons as Henry Ford B. to develop one’s thinking power in every conceivable way C. to sum up all the successful methods ever tried by creative people D. to learn to be more creative by doing easy things in an unusual way [多选题]集贸市场内消防设施、灭火器材的配备管理要求（ ）。
A. 市场内营业厅，仓库等用房，由主办单位或合办单位负责配备相应的灭火器材 B. 市场内的固定消防设施的维修和保养，由市场产权单位负责 C. 专职或义务消防队所必须的消防器材装备由市场的主办单位配备 D. 各摊位应当在市场主办或合办单位的组织下配备相应的灭火器材 [单选题]煤矿企业必须按照国家有关规定,对从业人员上岗前、在岗期间和离岗时进行(),建立职业健康档案,并将检查结果书面告知从业人员。
A.政治审查 B.文化测试 C.职业健康检查 [单项选择]列车接入站内尽头线，自进入该线起限制速度为（）。
A. 45km/h B. 30km/h C. 25km/h D. 15km/h [简答题]截交线有何基本特性？
[判断题]转辙装置整治以及道床电阻不良的轨道区段整治不属于信号工区配合的项目。
A.正确 B.错误 [单选题]劳动者申请职业病诊断时,当事人对职业病诊断有异议的,应当向做出诊断的医疗卫生机构所在地()申请鉴定。
A. 劳动保障部门 B. 劳动能力鉴定委员会 C. 卫生行政部门 D. 司法鉴定机构 [多项选择]下列不属于速度型（时域法）彩色多普勒成像技术特点的是（）
A. 表示血流方向 B. 反映血流速度快慢 C. 无信号混叠 D. 不表示血流方向 E. 不反映血流速度快慢 [判断题]如果出现整根绳股的断裂，则钢丝绳应予以报废。
A.正确 B.错误 [单项选择]治疗胎黄湿热郁蒸证首选方是（）
A. 犀角散 B. 栀子柏皮汤 C. 茵陈蒿汤 D. 甘露消毒丹 E. 茵陈五苓散 [判断题]受害的法人或者其他组织终止,承受其权利的法人或者其他组织无权要求赔偿。 ( )
A.正确 B.错误 我来回答: 提交
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