在用压力管道经过定期检验后可以继续使用。

宋代的蒋捷，有一首《虞美人·听雨》：少年听雨歌楼上， 红烛昏罗帐。 壮年听雨客舟中， 江阔云低， 断雁叫西风。而今听雨僧庐下， 鬓已星星也。悲欢离合总无情， 一任阶前点滴到天明。 这首诗蕴涵的哲理是（   ）

A．不同的事物有不同的矛盾

B．同一事物在发展的不同过程和不同阶段上有不同的矛盾

C．同一矛盾的两个方面各有其特殊性

D．矛盾的普遍性和特殊性是统一的

阅读理解。

     People from East Asia tend to have more difficulty than those from Europe in distinguishing facial

expressions-and a new report published online in Current Biology explains why.

       Rachael Jack,University of Glasgow researcher,said that rather than scanning evenly (均匀的) 

 across a face asWestemers do,Eastemers fix their attention on the eyes.

     "We show that Eastemers and Westemers look at different face features to read facial expressions,

" Jack said." Westemers look at the eyes and the mouth in equal measure.whereas Easterners favor the

eyes and neglect(忽略) the mouth. "

      According to Jack and her colleagues,the discovery shows that human communication of emotion is

more complex than previously believed. As a result,facial expressions that had been considered

universally recognizable cannot be used to reliably convey emotion in cross-cultural situations.

       The researchers studied cultural differences in the recognition of facial expressions by recording the

eye movements of 13 Westem Caucasian and 13 East Asian people while they observed pictures of

expressive faces and put them into categories: happy,sad,surprised,fearful,disgusted,angry,or neutral.

They compared how accurately participants read those facial expressions using their particular eye

movement strategies.

     It turned out that Eastemers focused much greater attention on the eyes and made significantly more

errors than Westerners did.  "The cultural difference in eye movements that they show is probably a

reflection of cultural difference in facial expressions,"Jack said." Our data suggest that whereas

Westemers use the whole face to convey emotion, Eastemers use the eyes more and mouth less."

       In short,the data show that facial expressions are not universal signals of human emotion.  From

here on,examining how cultural factors have diversified these basic social skills will help our understanding of human emotion.  Otherwise, when it comes to communicating emotions across cultures, Eastemers and Westemers will find themselves lost in trans- lation.

1. The discovery shows that Westemers _______.   

A. pay equal attention to the eyes and the mouth

B. consider facial expressions universally reliable

C. observe the eyes and the mouth in different ways

D. have more difficulty in recognizing facial expressions

2. What were the people asked to do in the study?            

A. To make a face at each other.                

B. To get their faces impressive.

C. To classify some face pictures.              

D. To observe the researchers' faces.

3. What does the underlined word "they" in Paragraph 6 refer to?   

A. The participants in the study.

B. The researchers of the study.

C. The errors made'during the study.

D. The data collected from the study.

4.  In comparison with Westemers,Eastemers are likely to _______ 

A. do translation more successfully

B. study the mouth more frequently

C. examine the eyes more attentively

D. read facial expressions more correctly

5. What can be the best title for the passage?  

A. The Eye as the Window to the Soul.

B. Cultural Differences in Reading Emotions.

C. Effective Methods to Develop Social Skills.

D. How to Increase Cross-cultural Understanding.

契约型基金的投资者既是基金的委托人，又是基金的受益人。因此，契约型基金的投资者对基金运作的影响比公司型基金的投资者大些。( )

发展中国家实施“大推进”投资战略的主要障碍是（）。

A.缺乏资金

B.缺乏人才

C.缺乏技术

D.缺乏市场

煤层注水防尘效果表现为采煤时空气含量的（）。

A.增加

B.稀少

C.不变

D.降低