（）不得转包或者违法分包工程。 A.施工单位 B.建设单位 C.房地产公司 D.所有

腐败是一种（）异化的社会现象，

该病人皮损消失后可能会留有

A．色素沉着

B．疱疹后神经痛

C．瘢痕

D．神经功能障碍

E．畸形

下列石化设备中，属于热换设备的有()。

A.蒸发器 

B.聚合釜 

C.集油器 

D.冷凝器 

E.洗涤器

A team of US psychologists have found that talking to another person for ten minutes a day helps with memory.

"Socializing is just as effective as more traditional kinds of mental exercise in boosting memory and intellectual performance," Oscar Ybarra, a psychologist at the University of Michigan Institute for Social Research, said in a statement.

In one investigation, they analyzed data on 3610 people, aged 24 to 96.

They found that the higher their level of social interaction (交流), the better their cognitive (认知的) functioning.  Social interaction includes getting together or having phone chats with relatives, freinds and neighbors.

In another experiment, the researchers conducted lab tests on 76 college students, aged 18 to 21, to evaluate how social interactions and intellectual exercises affected the results of memory and mental performance tests.

The students were divided into three groups: the social interaction group had a discussion of a social issue for 10 minutes before taking the tests; the intellectual activities group completed three tasks (including a reading comprehension exercise and a crossword puzzle) before the tests; and a control group (对照组) watched a 10-minute clip (电源片段) of the Seinfeld television show.

"We found that short-term social interaction lasting for just 10 minutes improved participants’ intellectual performance as much as engaging in so-called ’intellectual’ activities for the same amount of time," Ybarra said.

The study was expected to be published in the February issue of the journal Personality and Social Psychology Bulletin.

小题1:The underlined word "boosting" in the second paragraph can be replaced by ______.

A．improving

B．decreasing

C．preventing

D．training小题2:Which is not included in social interaction?

A．Having a talk with a neighbor.

B．Attending a birthday party.

C．Watching TV at home alone.

D．Calling your classmates小题3:What’s the purpose of the experiment on 76 college students?

A．To judge the effect of social interaction on memory and intelligence.

B．To find out what is real social interaction.

C．To learn how much time is needed for social interaction.

D．To show the function of people’s cognition.小题4:Which of the following questions may be asked in the social interaction group in the experiment?

A．What does the author want to show us?

B．Do you like living in a big city or a small one?

C．Which word can be used to fill in the blank?

D．What is the main idea of the second paragraph?小题5:What’s the main idea of the passage?

A．Intellectual exercises improve memory.

B．Different people have different ways of communication

C．Communicating with others keeps you healthy.

D．Social interaction makes you smart

汽车工作液的种类有哪些？