问题 单项选择题

患者女性,74岁,既往有高血压,非胰岛素依赖性糖尿病,消化性溃疡病,曾跌倒在家中造成股骨颈骨折,以动态髋螺钉作内固定。关于其深静脉血栓栓塞(VTE)危险的叙述,正确的是()

A.发生VTE的危险低,因患者是女性,无VTE史,无VTE的症状、体征

B.VTE的危险不高于踝部骨折时

C.决定其发生VTE的危险因素中最重要的是其年龄、骨折部位、制动时间的长短

D.近端VTE的危险高于小腿VTE,因该患者为近端部位骨折

E.各部位骨折的手术发生VTE的危险相同

答案

参考答案:C

多项选择题

199×年×月×日14时50分,某县磷肥厂新建4号500t硫酸罐发生爆炸事故,罐顶盖飞出砸死3人。
事故当日下午,该厂3名机械维修工人,利用乙炔割炬在硫酸罐底部开孔放水,准备接出第二根硫酸罐管道,当焊割工刚把割炬点着火的瞬间,硫酸罐突然发生爆炸,一声巨响,约2t重的罐顶盖飞出70.4m,磷肥车间3名装运工听到巨响立即从房内冲出房外场地时,被炸飞的硫酸罐顶盖从空中落下,当场砸死2人,另1人身负重伤,在送往医院抢救途中死亡。直接经济损失约10万元,30m范围内厂房、电气线路被炸毁,全厂被迫停产整顿。
事故原因分析如下:
该事故在既未经批准动火,也未查明能否动火的情况下,车间主任张某违反硫酸罐制作方案,指挥机械维修工人擅自将新建的4号硫酸罐的一根出酸管道(设计为二道出酸管)与总出酸管道联接,导致(92%~93%)浓硫酸进入4号硫酸罐内,遇水(罐内因试漏水未放尽)变为稀硫酸,稀硫酸与铁反应产生大量的氢气和热量,突遇明火发生爆炸。
根据以上情形回答下列问题,1~4题为单选题,只有一个正确的答案,5~7题为多选题,有两个或两个以上的正确答案。

根据《安全生产法》的规定,从业人员享有的安全生产保障权利主要包括:( )。

A.有获得符合国家标准的劳动防护用品的权利

B.有对违章指挥的拒绝权

C.有采取紧急避险措施的权利

D.有对安全生产问题提出批评、建议的权利

E.有获得及时抢救和医疗救治并获得工伤保险赔付的权利

单项选择题

That rapscallion who leaps off the monkey bars, landing smack onto an innocent 3-year-old bystander, and skips off, giggling all the while According to a new paper out of Israel, he may not feel all that bad about the incident. The study, conducted by Dr. In bal Kivenson Bar-On at the University of Haifa, shows that high levels of fearlessness in 3-and 4-year-olds is ply associated with aggression and a lack of sympathy. This news will likely surprise risk-loving America, where parents typically beam with pride when their undaunted child mounts the big slide.

Fearlessness is a far-end point on the spectrum of what psychologists call the "approach and withdrawal dimension"—people’s tendency to approach new stimuli (to gain information and acquire new skills ) and withdraw from unfamiliar stimuli (to avoid danger). Striking the right balance is considered crucial to man’s survival. But what about preschoolers’ There’s a clear downside, Dr. Kivenson Bar-On discovered, after she observed lots of preschool play and machinations. In total, she documented 80 children at preschool, home and in the lab, measuring their propensity for fearlessness and other social and emotional characteristics at the beginning and end of one year. Fearlessness was measured by observing reactions to various fright-inducing situations: separation from parents, the roar of a vacuum cleaner, a jack-in-the-box and the like. Those who displayed greater levels of fearlessness, the study found, had no trouble recognizing facial expressions of anger, surprise, happiness and sadness in other children—but they had a hard time identifying fear.

Over all, they were "emotionally shallow" and showed lower levels of sympathy. They took advantage of friends and lacked regret over inappropriate conduct. "These findings," the paper explains, " suggest that fearlessness in preschool constitutes a clear risk factor for developmental pathways that lead to problems in morality, conscience development, and severe antisocial behaviors. " At the same time, fearless children tended to be highly sociable. "One of the most interesting findings was that we could discriminate between friendliness and sympathy," Dr. Kivenson Bar-On said. "These kids are curious, easygoing and friendly, but they have a hard time recognizing emotional distress in others. "

Jamie Ostrov, a psychology professor at the State University at Buffalo who studies aggression, says that children at the extreme end of the fearless spectrurn "may be charming, but they’re also highly manipulative and deceptive and skilled at getting their way—even at age 3 or 4. " It could be that fearless children need per distress cues to active their autonomic nervous systems, limiting their ability to detect distress cues in others. It seems to be, if I’m not worried about this, you can’t be, either. But should we be

According to Dr. Kivenson Bar-On, fearless children()

A. have no sympathy

B. will have anti-social tendency

C. get well along with others

D. are foxy