“影”是我们日常生活中常见的光现象,如“手影”游戏,电影院放映的“电影”;河边树

题型:选择题

问题:

“影”是我们日常生活中常见的光现象,如“手影”游戏,电影院放映的“电影”;河边树木在水中形成的“倒影”,春游时留下美好记忆的照片(“摄影”)等,以下列出的“影”与物理知识对应关系正确的是     [ ]

A. 手影…光的直线传播

B. 倒影…光的折射 

C. 电影…平面镜成像

D. 摄影…光的反射

考点:光的直线传播现象光的反射现象光的折射现象
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塑化治疗不宜用于()

A.成人前磨牙

B.成人磨牙

C.成人上颌磨牙

D.老年人下前牙

E.年轻恒牙和乳牙

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下列影响立直反射建立的原因有()。

A.肌张力异常

B.身高

C.原始反射残存

D.姿势异常E

E.性别

题型:选择题

投资者买入认沽期权后,发现标的证券价格持续上涨,投资者想减少损失则最好()

A.持有到期行权

B.持有到期不行权

C.买入更多认沽期权

D.提前平仓

题型:选择题

Are you one of those who always fear whenever a dog is approaching If you are, you have got phobia ( a very p feeling of being afraid of something ). Of all human fears, phobias may be the most uncontrollable. They are most often caused by a particular situation or object. In general, pho- bias can mainly be divided into three varieties. To begin with, agoraphobia is a fear of staying in strange surroundings, for example, an unfamiliar place, or an open area. Social phobia refers to the anxiety people show when they have to stay or perform on social events, for instance, speaking in front of the class. Lastly, there are a wide range of specific phobias. People suffering from this kind of phobia are terrified of specific objects or creatures, such as spiders, perhaps to your surprise, clowns. Besides, there are about six hundred and fifty phobias listed by psychologists (心理学家) as yet.
Faced with their phobias, many people choose to do nothing but just escape the situations or objects they fear. Psychologists, however, warn that if not treated properly, this kind of anxiety will get worse, so that it may disturb the sleep pattern, cause physical symptoms, and finally affect their daily activities. As for treatment, clinical research has discovered that medicine for anxiety is not successful in curing phobias. However, the anxiety disorders can be efficiently treated through cognitive behavioral therapy (认知行为疗法) , through which patients are led to inspect the connections between their own fear and the situation or object, and then actively choose the acceptable treatments. Also, other treatments proved effective in reducing phobias are meditation, listening to calming music, and so on.

Which of the following statements about phobias is correct

A.Actors call help people to cure their phobias.

B.Phobias can be divided into six hundred and fifty types.

C.Those suffering from phobias may not sleep well or work normally.

D.Cognitive behavioral therapy demands little participation from patients.

题型:选择题

在进行计划编制时,你坐下来对每项任务所需的时间进行估算,这些时间的总和就是项目估算,这个历时就是你承诺完成项目的时间。以上描述有什么错误()

A、项目团队没有参与估算,而且这种方法耗时太长

B、项目团队没有参与估算,而且没有使用网络图

C、估算时间太久,应该有管理层完成

D、项目估算应该和客户要求的完工日期吻合

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