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But though quarantines were frequently effective in protecting the public from the spread of illness, they can be a blunt (钝的) instrument, and have often been abused or misapplied. In 1900, the death of a Chinese laborer suspected of having bubonic plague(腺鼠疫) in San Francisco prompted authorities to quarantine that city’s entire Chinatown district. Trapped behind crude barriers and barbed wire, and experiencing food shortages, San Francisco’s Asian population successfully challenged the measure as an act aroused by racial prejudice rather than concern for public health.
Today, federal officials have broad rights, through the Centers for Disease Control, to examine and quarantine foreign citizens coming into the United States if they may be carriers of contagious diseases. And state and local officials across the country have broad powers to detain Americans if they are clearly ill with a contagious disease and they resist treatment.
31. What does the first paragraph introduce to us?
A. A scene from a soap opera.
B. A piece of news about a shocking scene.
C. A scene from a medical advertisement.
D. A piece of news item telecast live.
32. The five passengers were surrounded by emergency vehicles when landing because they were ________ .
A. seriously ill
B. involved in some illegal dealings
C. seriously injured in an accident
D. suspected to have some contagious disease
33. Why is the old weapon back again?
A. Because we are facing with the severe attack of some mysterious disease like SARS.
B. Because we are facing with global bioterrorism attack.
C. Because the environmental crisis has made its coming back necessary.
D. Because we are in an age when we turn pale at the mere mention of something terrible.
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