问题 单项选择题

下述关于支气管扩张常见临床特点的叙述,错误的是()

A.反复咯血

B.咳大量脓痰

C.病变部位固定湿啰音

D.胸部X线平片多无异常表现

E.胸部CT多表现为支气管壁增厚,管腔呈囊、柱状扩张

答案

参考答案:D

解析:备选项中的反复咳大量脓痰及反复咯血是支气管扩张常见的临床症状,病变部位固定的湿啰音是支气管扩张常见的肺部体征。支气管扩张在肺CT上典型表现为支气管壁增厚,管腔扩大,表现双轨征、印戒征,或呈囊、柱状扩张。胸部X线平片常可看到肺纹理增多紊乱,典型表现为支气管壁增厚所致的双轨征,黏液阻塞时可表现为管状致密影。部分病例可以看到扩张的支气管呈囊样变,可伴有液平面。也有少数病例因病变局限,胸部X线平片可能无异常发现,但并非其特点。

阅读理解

All young people dream of travelling the world. They are restless and very eager to see new sights. However, they have little idea how they would really do it if given the chance. Because their knowledge of geography is quite limited, they seldom know much about the places they wish to visit or how they would get there.

Already hundreds of thousands of Chinese student tourists are visiting these places-Wuyi, Lhasa, Lijiang, Dali, Vientiane and Phnom Penh. Indeed, these students will soon be the most travelled generation in China’s long history. The World Tourist Organization predicts that a quarter of a century from now the number of Chinese tourists going abroad will be twenty times what it is today. The largest percentage of these tourists will visit Southeast Asia. Not all Chinese who travel abroad will be tourists, however. More and more youths are deciding to volunteer their skills in this region; much like their peers in th-e Peace Corps and VSO.

Critical thinking skills required include planning for a trip and solving problems after the trip has begun. The focus is on how to read an atlas (地图集) to make travel plans and how to find ways of travelling. An atlas offers a wealth of information about geography and is one way to increase students’ awareness of their global environment. Use of an atlas especially addresses the needs of students with different visual and spatial (空间的) learning styles.

71.The main idea. of the first paragraph is ________.

A. all young people wish to travel around the world

B. all young people like to learn the knowledge of geography

C. all young people like travelling but their knowledge of geography is quite limited

D. all young people are aware of the places they are going

72. These places, Wuyi, Lhasa, Lijiang, Dali, Vientiane and Phnom Penh, lie in ________.

A. China         B. Europe         C. Vietnam         D. Asia

73.Which of the following statements is TRUE?

A. The number of Chinese tourists going abroad will be twenty times what it is today in about 25 years.

B. The number of Chinese tourists going abroad will be twenty times what it is today in .about 10 years.

C. Southeast Asia will become the most popular visiting place in the world.

D. Young people will be addicted to Internet travelling.

74.One way to increase students’ awareness of their global environment is for them to ________.

A. watch TV         B. listen to radio news   C. read an atlas           D. plan a trip

75.The underlined phrase “a wealth of” can be replaced by “_________”.

A. a number of       B. a great many   C. a great many of      D. a great deal of

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