急性糜烂性胃炎出血的特点通常是A．呈喷射状呕血 B．出血量大，且不易止血 C．多为呕

滚动轴承的密封是为了防止灰尘的侵入和（）的露出

A.热量 

B.能量 

C.润滑油 

D.滚动体

In meditation(冥想)，people sit quietly and focus their attention on their breath .As they breathe in and out ,they attend to their feelings .As thoughts go through their minds. They let them go. Breathe .Let go .Breathe .Let go .

According to a recent study at the Insight Meditation Society in Barre,Massachusetts. Three months of training in this kind of meditation causes a market change in how the brain allocates(分配) attention. It appears that the ability to let go thoughts that come into mind frees the brain to attend to more rapidly changing things and events in the outside world. Expert mediators are better than other people at catching such fast-changing stimuli( 刺激),like facial expressions.

The study provides evidence for changes in the workings of the brain with mental training. People can learn and improve abilities of all sorts with practice, everything from driving to playing the piano. The study has shown that meditation is good for the brain. It appears to reduce pressure and promote a sense of well-being.

In an experiment, 17 volunteers with no meditation experience in the experimental group spent three months meditating 10 to 12 hours a day .A control group also with no meditation experience meditated for 20 minutes a day over the same period .Both groups were then given the tests with two numbers in a group of letters. As both group looked for the numbers , their brain activity was recorded.

Everyone could catch the first number .But the brain recordings showed that the less experienced mediators tended to grasp the first number and hang onto it, so they missed the second number .Those with more experience gave less attention to the first number .as if letting it go ,which led to an increased ability to grasp the second number ,This shows that attention can change with practice.

Just ask Daniel Levision , who meditated for three months as part of the study .”I am a much better listener,” he said . “ I do not get lost in my own personal reaction to what people are saying.”

小题1: The underlined word “them” in Paragraph 1 refers to  __________  .

A． feelings

B．minds

C．people

D．thoughts小题2:  Meditations manage their daily tasks better because they   ________  .

A．are given less pressure

B．allocate their attention better

C．have more stimuli for life

D．practice them more frequently小题3:In the experiment ,volunteers doing meditation for longer hours   _____  .

A．were more likely to catch both of the members

B．were used to memorizing numbers in groups

C．usually ignored the first number observed

D．paid more attention to numbers than to letters小题4: The study proves that     _____ .

A．meditation improves one’s health

B．brain activity can be recorded

C．human attention can be trained

D．mediators have a good sense of hearing

网络编辑员可以在网络信息发布系统中发布（）。

社会抚养费及滞纳金应当全部上缴（），并纳入县（市、区）人民政府财政预算。

电影《爱德华大夫》诠释了（）学派的观点

A.行为主义

B.精神分析

C.人本主义

D.功能主义