上肢轴线的连接是经由以下哪三点的连线？（） A.肱骨头、肱骨小头、尺骨头中心各点的连

(31)～(35)题使用下列数据表。
“班级”表：
班级号 班级名
11 信息200801班
12 信息200802班
21 计算机200801班
22 计算机200802班
“教师”表：
教师编号 姓名 班级号 工资 职称 电话
T11 李清 11 1500.00 讲师 65854587
T22王晓黎 12 2200.00 教授 63525876
T33欧倩倩 11 1600.00 讲师 65548478
T44 刘宏 21 1200.00 助教 63252585
T55 赵虎 22 2100.00 教授 68989854
T66胡丽丽 22 1400.00 讲师 65847952
T77 刘纷 12 1100.00 助教 65847931

下列SQL语句执行后，查询结果是( )。

SELECT 班级.班级名,SUM(工资); FROM 班级,教师; WHERE 班级.班级号=教师.班级号; GROUP BY 班级.班级号

A．各个班级教师工资的平均工资

B．各个班级教师的工资合计

C．所有教师工资的平均工资

D．所有教师的工资合计

关于ADSL，以下______是错误的。

A．ADSL的传输速率通常比在PSTN上使用传统的MODEM要高

B．ADSL可以传输很长的距离，而且其速率与距离没有关系

C．ADSL的非对称性表现在上行速率和下行速率可以不同

D．在电话线路上使用ADSL，可以同时进行电话和数据传输，两者都互不干扰

心动周期中，决定心室血液充盈的主要因素是（）。

A．腹腔的负压作用

B．胸腔负压吸引

C．心室舒张的抽吸作用

D．心房收缩的挤压作用

E．地心引力作用

Java语言没有无符号整数类型、指针类型、______、联合类型、______，这使得Java编程简单易学。

阅读理解

     The NBA's version of the Ming Dynasty is done. After helping pro basketball gain a foothold in the

world's most populous market, Chinese star Yao Ming has retired.

    Yao made it official Wednesday, telling a news conference that a series of foot and leg injuries forced

him to end his playing career at the age of 30.

     "I will formally end my career," said Yao, who became a household name in China before starting his

NBA career with the Houston Rockets in 2002. Yao played eight seasons in the NBA.

     "Today is an important day for me and holds a special meaning for both my basketball career and my

future," Yao said. "I had to leave the court since I suffered a stress fracture(断裂) in my left foot for the

third time at the end of last year. My past six months were a painful wait. I have been thinking about my

future over and over. Today I am announcing a personal decision, ending my career as a basketball player and officially retire. But_one_door_is_closing_and_another_one_is_opening."

     Yao said he would return to work with his former Chinese team, the Shanghai Sharks, with the

possibility of becoming general manager. He already owns the club and wants to contribute more.

     "My playing career started with the club. I hope I can do something for it," Yao said.

     He later appeared with his family on the stage to the applause and cheers of the crowd. He thanked

a lot of people-his family, former coaches, even players like Shaquille O'Neal-"for making me a better

player, I will be always with you. Thank you."

     Rockets general manager Daryl Morey was among those attending the farewell(告别)conference

Wednesday. Morey made the long trip from Houston. Morey said 20 hours on planes was tiring but "I

would be sorry if I wasn't here." "It's a big moment," Morey added. "Yao had a sense of humor, a great

attitude and sense of responsibility. I hope we can continue his culture in the NBA."

     Yao had played six years with the Chinese national team before joining the Rockets, and was already

a star in his home country. He carried the Olympic torch through Tian'anmen Square and his country's

flag during the opening ceremonies at the Beijing Olympics in 2008. He also donated $2 million and set

up a foundation to rebuild schools in the wake of the 2008 earthquake in Sichuan.

1. Which of the following can be the best title of the passage?

A. Yao Ming: a household name

B. Chinese great Yao Ming retires from basketball

C. A farewell conference

D. Yao Ming's personal decision

2. What does the underlined sentence in Paragraph 4 mean?

A. He has retired from playing basketball and his new career will begin.

B. He can't go to the US because of his retirement.

C. He is welcomed in his motherland.

D. He will return to work with the charity.

3. According to the passage, which of the following words can't be used to describe Yao Ming?

A. Talented.  

B. Responsible.

C. Generous.  

D. Cautious.

4. Which of the following is TRUE according to the passage?

A. The reason why Yao Ming retired is that he is too old.

B. Yao Ming played six years in America.

C. Yao Ming started his playing career in Houston.

D. Yao Ming was once an Olympic torchbearer.