【单选题】

蛛网膜下腔麻醉及硬脊膜外麻醉时常合用麻黄碱,其目的是防止局部麻醉药

A.
抑制呼吸
B.
降低血压
C.
引起心律失常
D.
局部麻醉作用过快消失
E.
扩散吸收
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参考解析
【单选题】
一患者主诉左下后牙食物嵌塞。检查:左下7、8间食物嵌塞,龈乳头退缩,左下8正位且无对牙,过长。
此患者解决食物嵌塞的最佳办法是
A.
调磨相邻两牙边缘嵴
B.
调磨对牙尖
C.
调磨磨耗小平面
D.
拔除左下8
E.
扩展外展隙
【单选题】

学生合作精神评价的内容主要包括学生交往能力、(  )。

A.
合作精神和社会责任感
B.
合作精神和自信心
C.
合作精神和意志
D.
社会责任感和自信心
【单选题】

牙周病全身治疗的常用药物不包括

A.
甲硝唑
B.
四环素
C.
螺旋霉素
D.
多种维生素
E.
红霉素
【单选题】

作为一种基本的课程形态,综合实践活动是一门()

A.
学科课程
B.
经验课程
C.
核心课程
D.
分科课程
【单选题】

Passage1

Today's adults grew up in schools designed to sort us into the various segments of our social and economic system. The amount of time available to learn was fixed: one year per grade. The amount learned by the end of that time was free to vary: some of us learned a great deal;some,very little. As we advanced through the grades,those who had learned a great deal in previous grades continued to build on those foundations. Those who had failed to master the early prerequisites within the allotted time failed to learn that which followed. After 12 or 13 years of cumulative treatment of this kind,we were,in effect,spread along an achievement continuum that was ultimately reflected in each student's rank in class upon graduation.

From the very earliest grades, some students learned a great deal very quickly and consistently scored high on assessments. The emotional effect of this was to help them to see themselves as capable learners, and so these students became increasingly confident in school. That confidence gave them the inner emotional strength to take the risk of striving for more success because they believed that success was within their reach. Driven forward by this optimism, these students continued to try hard, and that effort continued to result in success for them. They became the academic and emotional winners. Notice that the trigger for their emotional strength and their learning success was their perception of their success on formal and informal assessments.

But there were other students who didn't fare so well. They scored very low on tests, beginning in the earliest grades. The emotional effect was to cause them to question their own capabilities as learners. They began to lose confidence, which, in turn, deprived them of the emotional reserves needed to continue to take risks. As their motivation warned, of course, their performance plummeted. These students embarked on what they believed to be an irreversible slide toward inevitable failure and lost hope. Once again, the emotional trigger for their decision not to try was their perception of their performance on assessments.

Consider the reality-indeed, the paradox-of the schools in which we were reared. If some students worked hard and learned a lot, that was a positive result, and they would finish high in the rank order. But if some students gave up in hopeless failure, that was an acceptable result, too, because they would occupy places very low in the rank order. Their achievement results fed into the implicit mission of schools: the greater the spread of achievement among students, the more it reinforced the rank order. This is why, if some students gave up and stopped trying (even dropped out of school), that was regarded as the student's problem, not the teacher's or the school's.

Once again, please notice who is using test results to decide whether to strive for excellence or give up in hopelessness. The"data-based decision makers" in this process are students themselves.

Students are deciding whether success is within or beyond reach, whether the learning is worth the required effort, and so whether to try or not. The critical emotions underpinning the decision making process include anxiety, fear of failure, uncertainty, and unwillingness to take risks-all triggered by students' perceptions of their own capabilities as reflected in assessment results.

Some students responded to the demands of such environments by working hard and learning a great deal. Others controlled their anxiety by giving up and not caring. The result for them is exactly the opposite of the one society wants. Instead of leaving no child behind, these practices, in effect, drove down the achievement of at least as many students as they successfully elevated. And the evidence suggests that the downside victims are more frequently members of particular socioeconomic and ethnic minorities.


Which of the following will be triggered by the assessment results according to the passage?

A.
Students'learning efforts.
B.
Leaving-no-child-behind policy.
C.
Socioeconomic and ethnic ranking.
D.
Social disapproval of schools'mission.
【单选题】

下列选项中,属于腿部肌肉的是(  )。

A.
斜方肌
B.
三角肌
C.
股直肌
D.
大圆肌
【单选题】

感染性休克首先考虑的治疗措施是(     )

A.
静脉输注血管收缩药物
B.
补充血容量,同时立即剖腹探查
C.
迅速补充血容量,同时大剂量应用抗生素
D.
静脉输注糖皮质激素
E.
滴注利尿剂改善肾功能
【单选题】

“文化大革命”期间,中国共产党粉碎林彪反革命集团是在(   )。

A.
1967年
B.
1971年
C.
1972年
D.
1976年
【单选题】

依据《生产经营单位安全培训规定》,煤矿企业主要负责人和安全生产管理人员,自任职之日起(    )个月内,必须经应急管理部门对其安全生产知识和管理能力考核合格。

A.
1
B.
3
C.
6
D.
12
【单选题】

幼儿阅读活动的主要目的是(    )

A.

培养阅读兴趣与习惯

B.

获得读写能力

C.

提高文字理解能力

D.

扩大识字量