慢性脓胸，哪些是正确的（） A.外科疗法的目的在于消灭死腔 B.胸腔引流，治愈的多

常在画面以“哭之”“笑之”字样题款的画家是（）。

无安全保证措施施工，或安全措施不落实施工的，监理单位必须书面要求施工单位（）

以下关于软件质量保证和质量评价的描述中，不正确的是______。

A．软件质量保证过程通过计划制订、实施和完成一组活动提供保证，这些活动保证项目生命周期中的软件产品和过程符合其规定的需求
B．验证和确认过程确定某一开发和维护活动的产品是否符合活动的需求终的产品是否满足用户需求
C．检查的目的是评价软件产品，以确定其对使用意图的适合性，目标是识别规范说明与标准的差异，并向管理提供证据
D．软件审计的目的是提供软件产品和过程对于可应用的规则、标准、指南、计划和流程的遵从性的独立评价

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