近年来认为疟疾远期复发的原理是（） A.肝内有迟发型子孢子 B.红细胞内疟原虫未被完

男性，20岁家中安装了煤气热水器，2小时前在洗澡时昏倒在浴室内，送至医院时病人处于昏迷状态，小便失禁，瞳孔缩小，对光反射消失，角膜反射迟钝，呼吸浅快，32次/分，心率102次/分，口唇樱红，拟诊"急性一氧化碳中毒"。

此时给病人抽血急查碳氧血红蛋白浓度很可能在（）

A.5%以下

B.10%～20%

C.30%～40%

D.50%以上

E.无法查到

Social Program: 22nd—26th August 2011

Monday Evening—Study Centre or Sports Park

Study Center: The school will be open from 7:45 pm to 9:35pm.

Sports Park: Aerobics, Swimming or Fitness Training (with a Fitness Card).

Tuesday Evening—Cinema

Cinema: To get your free ticket, you must write down which film you would like to watch. See the leaflet on the board for this evening’s UCI Cinema program. For more information about the films, visit the UCI website www.uci.co.uk or see the film section in this week’s Time Out magazine.

Wednesday Evening—Study Centre of Tennis Coaching

Study Center: The school will be open from 7:35 pm to 9:35 pm.

Tennis Coaching: With former Junior Wimbledon tennis player Stuart Silvester.

Thursday Evening—Chinese Party

Chinese Party: Come along and enjoy the hospitality(好客) of the Chinese students! You can try delicious Chinese food and learn about Chinese traditions. Please note that you should eat your evening meal at your home-stay, as the food is a taster and not a full meal. Non alcoholic and alcoholic drinks will be served.

Friday afternoon—Historical Walking Tour or Sports Parks

Historical Walking Tour: This afternoon you will have the opportunity to visit parts of Norwich you may have otherwise missed, with a professional guide. In medieval(中世纪的) times Norwich was the second most important city in England and this afternoon you can learn some of the interesting history of our fine city.

Sports Park: Badminton, Basketball, Fitness Training (with a Fitness Card), Football, Squash, Swimming or Volleyball.

Please sign early if you wish to play any of the sports listed above.

小题1:You can do all the following things during the weekday except ___________.

A．going to the cinema

B．going to the Chinese party

C．taking a historical walking tour

D．taking a mountain climbing tour小题2:The passage may probably be found ___________.

A．in a school’s bulletin board

B．in a school’s text book

C．in a latest newspaper

D．in a fashion magazine小题3:From the passage we know that ___________.

A．students have to pay for the film tickets

B．some of the students in the school are Chinese

C．Norwich is the second largest city in Britain

D．the school is closed during the daytime小题4:From the passage we can infer that __________.

A．students in the school can have access to computers

B．students in the school only have morning classes

C．the school often serves Chinese food to students

D．every Friday afternoon the students will have a tour

一般来说，公共性设施主要是由政府公共部门进行开发的，因为公共性设施是最为典型的公共物品，具有( )。

A．免费性

B．竞争性

C．排他性

D．非排他性

E．非竞争性

以下各题使用如下三个数据库表：
学生表：student(学号，姓名，性别，出生日期，院系)
课程表：course(课程号，课程名，学时)
选课成绩表：score(学号，课程号，成绩)
其中出生日期的数据类型为日期型，学时和成绩为数值型，其他均为字符型。

删除学号为"20091001"且课程号为"C1"的选课记录，正确命令是( )。

A．DELETE FROM score WHERE课程号=’C1’AND学号=’20091001’

B．DELETE FROM score WHERE课程号=’C1’OR学号=’20091001’

C．DELETE FROM scorc WHERE课程号=’C1’AND学号=’20091001’

D．DELETE score课程号=’C1’AND学号=’20091001’

三级建筑物平面控制网的测角中误差为（）。

A．±15"

B．±18"

C．士20"

D．±25"