在安氏Ⅱ类Ⅰ分类错中,上下颌位置均在正常范围内者,占全部患者的() A.40% B.

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问题:

在安氏Ⅱ类Ⅰ分类错中,上下颌位置均在正常范围内者,占全部患者的()

A.40%

B.91.20%

C.29.4%

D.1/4

E.1/3

考点:重庆住院医师口腔科Ⅰ阶段口腔正畸学口腔正畸学题库
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患者,女,60岁。糖尿病病史12年,近来用普通胰岛素控制血糖,但空腹血糖多波动在12.0~16.8mmol/L之间,夜间尿糖阳性,白天尿糖全部阴性。

本例血糖水平控制不佳的原因,可基本除外

A.夜间胰岛素作用不足

B.黎明现象

C.Somogyi效应

D.夜间肝糖原输出增加

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Some students get so nervous before a test, they do poorly even if they know the material. Sian Beilock, a psychology professor at the University of Chicago in Illinois, has studied these highly anxious test-takers.

Sian Beilock says: “They start worrying about the consequences. They might even start worrying about whether this exam is going to prevent them from getting into the college they want. And when they worry, it actually uses up attention and memory resources. I talk about them as their cognitive(认知的)horsepower that they could otherwise be using to focus on the exam.”

Professor Beilock and another researcher, Gerardo Ramirez, have developed a possible solution. Just before an exam, highly anxious test-takers spend ten minutes writing about their worries about the test. The researchers tested the idea on a group of 20 anxious college students. They gave them two short math tests. After the first one, they asked the students to either sit quietly or write about their feelings about the upcoming second test. The researchers added to the pressure. They told the students that those who did well on the second test would get money. They also told them that their performance would affect other students as part of a team effort.

Professor Beilock says those who sat quietly scored an average of 12 percent worse on the second test. But the students who had written about their fears improved their performance by an average of five percent.

Next, the researchers used younger students in a biology class. They told them before final exams either to write about their feelings or to think about things unrelated to the test.

Professor Beilock says highly anxious students who did the writing got an average grade of B+, compared to a B-for those who did not.

The research shows that for students who are highly test-anxious, who’d done the writing intervention(介入), all of a sudden there was no relationship between test anxiety and performance. Those students most likely to worry were performing just as well as their classmates who don’t normally get nervous in these testing situations.

But what if students do not have a chance to write about their fears immediately before an exam or presentation? Professor Beilock says students can try it themselves at home or in the library and still improve their performance.

小题1:The purpose of the passage is         .

A.to build the confidence of the highly anxious test-takers

B.to introduce a research about the anxious test-takers

C.to improve the performance of the test-takers

D.to tell something about the highly anxious test-takers小题2:The underlined word “them” in paragraph 2 refers to       .

A.attention and memory resources

B.worries about the consequences

C.concerns about the exam

D.cognitive horsepower小题3:According to the research, the solution to the test anxiety is to       .

A.sit quietly before the exam

B.prepare well before the test

C.set their mind on happy memories

D.write about their feelings before the test小题4:The result of the research suggests that         .

A.proper amount of burden may turn out to be a good thing

B.avoiding facing the problem may contribute to relaxation

C.facing the fears bravely may help one to achieve more

D.taking no action before difficulty may result in success

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最近三个月的二手房市场成交量已接近2008年下半年市场最低迷时期的水平。但是,此轮调控是我国政府主动为之的行动,与2008年房地产市场因遭遇________的国际金融危机而陷入低迷不同。当下的房价调整并不均衡,不同于2008年房价________,无可遏制的逐波下行。依次填入画横线部分最恰当的一项是()。

A.. 意想不到 日薄西山

B.猝不及防 泥沙俱下

C. 出其不意 应声而下

D.措手不及 江河日下

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在定义安全需求时下列人员中谁应为信息安全管理提供输入?()

A、配置管理经理

B、数据库管理员

C、顾客

D、服务台人员

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下列历史现象中,最能体现明清时期符合世界发展趋势的是()

A.玉米、甘薯等作物传入我国,并在一些地区广泛种植

B.“湖广熟,天下足”取代了“苏湖熟,天下足”

C.苏州丝织业“小户”听“大户呼织”计日受值”

D.金属货币广泛应用,白银成为普遍流通的货币

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