肝癌患者,CT发现胃底后部及胃体中部后壁内团状软组织块影,增强扫描早期有明显强化,应

题型:单项选择题

问题:

肝癌患者,CT发现胃底后部及胃体中部后壁内团状软组织块影,增强扫描早期有明显强化,应考虑诊断为()

A.并发胃癌

B.肝癌胃转移

C.胃平滑肌瘤

D.胃底周围淋巴腺转移

E.肝硬化胃静脉曲张

考点:专业理论消化系统消化系统题库
题型:单项选择题

Do you like to sit in front of the computer and play computer games hour after hour? Have you ever thought of what that may be doing to your health? More and more children are becoming overweight(肥胖的) and growing less creative because they spend too much time in front of the computer according to a survey.

Last week Child Protective Services(儿童保护组织)in America organized an activity. The aim of the activity was to encourage children to do some outdoor activities instead of playing computer games at home. Many American children spend about 1,000 hours a year playing computer games — more time than they spend in school. As a result, they are overweight. Some of them have very poor eyesight, and they can’t see clearly.

Everyone should pay attention to his health and try to keep healthy. The doctor says that the longer children play computer games, the more overweight they may become. And the junk food children eat while they’re playing computer games makes the weight problem more serious.

To keep fit, children need to take exercise regularly, play outside with friends, and explore the world around them. Can you spend two weeks without playing computer games? It might be difficult for computer lovers, but why not have a try?

小题1:Children may become______ if they play computer games all day.

A.much younger

B.much lighter

C.less creative

D.less careful小题2:American children may spend______ hours in school a year according to the passage.

A.less than 1,000

B.more than 1,200

C.about 1,500

D.about 2,000小题3:The underlined word “eyesight” means “______” in Chinese.

A.凝聚力

B.想象力

C.记忆力

D.视力小题4:What can we learn from the passage?

A.Playing computer games has caused some health problems.

B.Playing computer games can make children cleverer and more creative.

C.Child Protective Services in America organized an activity for parents.

D.Child Protective Services asked children to study at home and not to play outdoors.

题型:单项选择题

含氮a%的某化合物一个分子中含有2个氮原子,此化合物的相对分子质量为(  )

A.

a
2800

B.80

C.

2800
a

D.

28
a

题型:单项选择题

可用于灭火的水源有人工水源和天然水源两大类。

题型:单项选择题

判断通电导体周围产生的磁场方向,用()定则。

题型:单项选择题

下列选项中中文名称和英文缩写对应正确的是()。

A、国际标准化组织/文献工作委员会(IEO/TC16)

B、国际档案理事会(ICA)

C、美国国家档案与文件署(NASA)

D、加拿大档案学者库克(Cook)

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