Filters and low tar tobacco make smoking safer.
A. Right
B. Wrong
C. Not mentioned
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What advantages do managers have over the other workers？
A. They will not lose their jobs.
B. They may work at whatever interests them.
C. They can get time off to attend courses.
D. They can make their own decisions.
Manual workers' working conditions generally remain bad because
A. the workers are unwilling to change them.
B. no one can decide what to do about them.
C. managers do not want to change them.
D. office workers want to protect their position.
It is suggested that the prices of services
A. rise owing to their high-quality contents.
B. grow due to their on-the-spot production.
C. augment with the increase of service workers.
D. advance in proportion to economical growth.
The main purpose of the text is to
A. show the dangers Ethiopian wolves are facing with.
B. inform. people of the prospects Ethiopian wolves.
C. teach how to divide Ethiopian wolves into groups.
D. tell how to protect Ethiopian wolves from rabies.
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