伦敦烟雾事件和洛杉矶光化学烟雾事件死亡者中,80%以上是有心脏或呼吸系统疾病的患者,

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问题:

伦敦烟雾事件和洛杉矶光化学烟雾事件死亡者中,80%以上是有心脏或呼吸系统疾病的患者,其易感性增强的主要因素是()

A.性别

B.膳食

C.遗传

D.职业

E.健康状况

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Most Americans have a city they like best. Over the years, American songwriters have described these feelings in music. More songs have been written about America's biggest city, New York, than about any other city. Many others dream about leaving their small towns to go there. They want to become rich and famous. Frank Sinatra sings about this dream in the most popular song written about New York. 
Almost three-million people live in the middle western city of Chicago, Illinois. It is now America's third largest city. It used to be the second largest city. So, of course, it needed its own song. Judy Garland sings the song, "Chicago, Chicago. "
One of America's most exciting cities is Las Vegas, Nevada. In nineteen-sixty-four, Elvis Presley starred in a movie called "Viva Las Vegas." Here is the song from that movie. It is sung by the group Z-Z Top.
As we all know, one of the most beautiful cities in America is San Francisco, California. The most popular song about the city is called "I Left My Heart in San Francisco." Tony Bennett recorded it in nineteen-sixty-two. It sold more than three-million records.
Many people love Los Angeles, California. It is now America's second largest city. Los Angeles is popular because the weather is warm and the sun shines almost all the time. Randy Newman sings about his feelings for the city in the song, "I Love L.A." Not everyone, however, loves Los Angeles. Some people do not like all the big roads around the city. They like living in a smaller place. A place like San Jose, California. Dionne Warwick sings about going back to this city. The song is, "Do You Know The Way To San Jose."
Songs about American Cities
States
 
小题1:__________
Features
   Songs
Songwriters/ Band
 
New York
America's biggest city
A song about New York
 
小题2:____________
Illinois
Chicago,
 
小题3: America's ____________ city
"Chicago, Chicago"
Judy Garland
 
小题4:________
 
小题5:_________
America's second largest city
小题6:_________
Randy Newman
 
San Francisco
 
小题7:___________
"I Left My Heart in San Francisco."
 
小题8:____________
 
小题9:________
 
small
"Do You Know The Way To San Jose
 
Dionne Warwick
 
Nevada
 
Las Vegas
 
exciting
A song from "Viva Las Vegas."
 
小题10: the group ___________
 
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家政服务员出行时,在人行道内行走时,应靠()边行走。

A、左

B、右

C、前

D、后

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1982年底的全国武术工作会议提出了()的指示和号召。

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下列说法中,错误的是

A.硬盘驱动器和盘片是密封在一起的,不能随意更换盘片

B.硬盘是多张盘片组成的盘片组

C.硬盘的技术指标除容量外,另一个是转速

D.硬盘安装在机箱内,属于主机的组成部分

题型:单项选择题

什么叫浮动密封?

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