出血性疾病 A.暗红色果酱样脓血便 B.排便前后有鲜血滴出或喷射出 C.黏液脓性鲜血

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问题:

出血性疾病

A.暗红色果酱样脓血便
B.排便前后有鲜血滴出或喷射出
C.黏液脓性鲜血便
D.粪便灰黑色,无光泽
E.洗肉水样粪便伴腥臭味

考点:卫生资格考试(中初级)全科医学主治医师常见症状鉴别诊断
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撒哈拉沙漠以南非洲的国家为改变经济落后的局面,可采取的合理措施是[ ]

A.扩大初级产品的生产

B.努力发展民族工业和多样化农业

C.提高初级产晶的出口价格

D.大力推销外国的产品

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Anyone who doubts that children are born with a healthy amount of ambition need spend only a few minutes with a baby eagerly learning to walk or a headp toddler starting to talk. No matter how many times the little ones stumble in their initial efforts, most keep on trying, determined to master their amazing new skill. It is only several years later, around the start of middle or junior high school, many psychologists and teachers agree, that a good number of kids seem to lose their natural drive to succeed and end up joining the ranks of underachievers. For the parents of such kids, whose own ambition is often inseparately tied to their children’s success, it can be a bewildering, painful experience. So it is no wonder some parents find themselves hoping that ambition can be taught like any other subject at school.
It’s not quite that simple. "Kids can be given the opportunities, but they can’t be forced," says Jaequelynne Eccles, a psychology professor at the University of Michigan who led a study examining what motivated first-and-seventh-graders in three school districts. Even so, a growing number of educators and psychologists do believe it is possible to unearth ambition in students who don’t seem to have much. They say that by instilling confidence, encouraging some risk taking, being accepting of failure and expanding the areas in which children may be successful, both parents and teachers can reignite that innate desire to achieve.
Dubbed Brainology, the unorthodox approach uses basic neuroscience to teach kids how the brain works and how it can continue to develop throughout life. The message is that everything is within the kids’ control, that their intelligence is

malleable

.
Some experts say our education system, with its p emphasis on testing and rigid separation of students into different levels of ability, also bears blame for the disappearance of drive in some kids. Some educators say it’s important to expose kids to a world beyond homework and tests, through volunteer work, sports, hobbies and other extracurricular activities. "The crux of the issue is that many students experience education as irrelevant to their life goals and ambitions," says Michael Nakkula, a Harvard education professor who runs a Boston-area mentoring program called Project IF (Inventing the Future), which works to get low-income underachievers in touch with their aspirations. The key to getting kids to aim higher at school is to tell them the notion that classwork is irrelevant is not true, to show them how doing well at school can actually help them fulfill their dreams beyond it. Like any ambitious toddler, they need to understand that they have to learn to walk before they can run.

According to the passage, most educators believe that many kids ______.

A.show a lack of academic ambition at birth

B.amaze their parents by acting like adults

C.become less ambitious as they grow up

D.get increasingly afraid of failing in school

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男,62岁,乙型肝炎病史10年,近日出现呕血、柏油样便,继之神志恍惚来诊。检查:Bp80/50mmHg,巩膜黄染,言语不清,定向力丧失,计算能力下降,幻觉出现,睡眠时间倒错,有扑翼震颤,肌张力增高,脑电图异常,HB60g/L,血pH7.48,血清钾2.8mmol/L,血氨升高。

如患者出现狂躁不安可给予()

A.吗啡

B.水合氯醛

C.哌替啶

D.副醛

E.异丙嗪

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CISC指令集结构功能设计的主要目标是什么,从哪几个方面考虑,如何理解?

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患者,女性,48岁。其行胃大部切除术,输血150mL后出现寒战,肌肉注射异丙嗪25mg后继续输血。半小时后,体温39.7℃,血压70/60mmHg,脉搏160次/分,发绀,意识不清,烦躁不安。可能的原因是()

A.输血后出血倾向

B.发热反应

C.溶血反应

D.细菌污染反应

E.输血感染疟疾

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