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问题 单项选择题

颈椎病诊断的主要依据是

A．颈椎X线正侧位片

B．临床症状和体征

C．临床表现和与之相应的影像学异常

D．颈肩痛和颈椎X线平片

E．颈脊髓造影或MRI

答案

参考答案：C

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CCTV  PROGRAMMES (节目)
Channel (频道)  1
Channel  2
18:00  Around China
18:30  Children's programs
19:00  News
19:30  Weather report
19:40  Around the world
20:10  TV play: Sisters
21:00  English for today
21:15  Popular music
21:55  Talk show		17:45  Computers today
18:10  Foreign arts
18:30  English classroom
19:00  Animal world
19:25  China' 2005
20:20  Sports
21:00  TV play: Guo Lanying
21:45  English news
22:05  On TV next week
1. If you want to watch a football game, the best program for you would be ______.
A. TV play
B. Sports
C. Around the world
D. Talk show
2. The program of ______ will let you know much about western (西方的) countries.
A. Sisters
B. Around China
C. Around the world
D. On TV next week
3. If you want to know something about tigers, elephants and monkeys, the best program for you is ______.
A. Around China
B. Animal world
C. TV play
D. Foreign arts
4. English classroom is a program that ______.
A. lets you know something about classroom
B. tells you something about students
C. tells you something about school life
D. teaches you English
5. The program at the end of Channel 2 means (意思是) ______ on TV next week.
A. news
B. programs
C. people
D. places
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选择题

一些烷烃的燃烧热如下表：

化合物燃烧热/kJ•mol-1化合物燃烧热/kJ•mol-1
甲烷891.0正丁烷2 878.0
乙烷1 560.8异丁烷2 869.6
丙烷2 221.52-甲基丁烷3 531.3
下列表达正确的是（　　）

A．正戊烷的燃烧热小于3 531.3 kJ•mol-1

B．稳定性：正丁烷＜异丁烷

C．乙烷的燃烧热化学方程式为：2C2H6（g）+7O2（g）═4CO2（g）+6H2O（g）△H=-1 560.8 kJ•mol-1

D．相同质量的烷烃，碳的质量分数越大，燃烧放出的热量越多
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