问题 单项选择题

判断药物有效性的指标(临床常见)不包括

A.疾病治愈率
B.疾病显效率
C.病床占用率
D.临床好转率
E.临床无效率

答案

参考答案:C

解析: 本题考查药物有效性的指标。
药物的有效性就是指要通过药物的作用达到预定的目的。不同的药物用于不同的场合,其有效性的外在表现明显不同。对于医学用途的药物治疗,要求的有效性在程度上也有很大的差别,分别为:①根除致病原,治愈疾病;②延缓疾病进程;③缓解临床症状;④预防疾病发生;⑤避免某种不良反应的发生;⑥调节人的生理功能。判断药物有效性的指标有多种,临床常见的有治愈率、显效率、好转率、无效率等。病床占有率不能体现药物的有效性,是评价医院的指标。所以C是正确的选项。

单项选择题
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 the second paragraph, we may know()

A. fearless children are easy to live

B. fearless children’s character downside

C. fearless children are not sensitive to fear

D. fear children are hard to distinguish different kinds of look