慢性化脓性中耳炎，鼓膜穿孔边缘有一部分已达鼓沟，该处无残余鼓膜，称为（） A.中央性

经营权的基本内容是()。

A．财产所有权

B．财产使用权

C．市场决策权

D．财产支配转让权

C.

After blogging regularly for two months, people felt they had better social support and friendship networks than those who don’t blog. Blogging can help you feel less isolated, more connected to a community and more satisfied with your friendships, both online and face-to-face, new Australian research has found.

Researchers James Baker and Professor Susan Moore from Swinburne University of Technology in Melbourne have written two papers investigating the psychological benefits of blogging, regularly updating personal web pages with information that invites others to comment.

The first, published in the latest issue of the journal Cyber Psychology & Behavior, compares the mental health of people intending to blog with that of people not planning to blog. Moore says the researchers messaged 600 My Space users personally and directed them to an online survey. A total of 134 completed the questionnaire; 84 intended to blog and 50 didn’t.

“We found potential bloggers were less satisfied with their friendships and they felt less socially integrated, and they didn’t feel as much part of a community as the people who weren’t interested in blogging…” Moore says. “It was as if they were saying ‘I’m going to do this blogging and it’s going to help me.’”

And it seemed to do the trick, as the researchers’ second study shows. This study, which is yet to be published, was conducted two months later. The researchers sent out questionnaires to the same group of My Space users; this time 59 responded. Bloggers reported a greater sense of belonging to a group of like-minded people and feeling more confident for they could rely on others for help. All respondents, whether or not they blogged, reported feeling less anxious, depressed and stressed after two months of online social networking.

“So going onto My Space had lifted the mood of all participants in some way,” Moore says. “Maybe they’d just made more social connections.” Moore acknowledges this early research and hopes to follow a larger group of people for a longer period time to test some of the research findings.

46. What does the passage mainly tell us?

A. The mental health of bloggers                        B. Blogging improves one’s social life.

C. What kind of people are likely to blog             D. Blogging has become more popular.

47. It can be inferred from the fourth paragraph that ______.

A. those who were not interested in blogging didn’t have good mental health.

B. people were likely to become bloggers if they felt socially isolated

C. potential bloggers were those who had mental health problems

D. potential bloggers usually held a wrong view about blogging

48. The purpose of the second study is to find out ______.

A. what people do on My Space

B. how many people became bloggers

C. how people felt after blogging for two months

D. how many people kept blogging after two months

49. The second study shows that ______.

A. online social networking can do people good

B. only bloggers benefit from online social networking

C. not many potential bloggers became real bloggers

D. not all bloggers found the help they needed

50. The main purpose of people going on My Space is probably to ______.

A. exchange goods                                                 B. entertain themselves

C. seek help                                                          D. exchange views

，交换积分次序得（）［其中f（x，y）是连续函数]。

A.

B.

C.

D.

资本结构是指企业各种长期资金筹集来源的构成和比例关系，企业的最佳资本结构是（）。

A．公司价值最大的资本结构

B．每股收益最大的资本结构

C．周期成本最低的资本结构

D．投资风险最低的资本结构

当材料厚度不变、弯曲成形的半径越大，变形（）。

A.可大可小

B.越大

C.不变化

D.越小