单项选择题

A. The number of smokers has been falling about 2 percent a year.
B. The number of smokers has been rising 20 percent a year.
C. The number of smokers has been rising 2 percent a year.
D. The number of smokers has been falling 20 percent a year.
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单项选择题
A. To replace his stolen bicycle. B. To begin bicycling to work.C. To join a bicycle club. D. To train for a bicycle race.
A. To replace his stolen bicycle.
B. To begin bicycling to work.
C. To join a bicycle club.
D. To train for a bicycle race.
单项选择题
A. Students are not required to attend regular class lectures.B. The professor videotapes class lectures for review.C. Classes are held at various locations throughout the area.D. Students receive credit for work experience.
A. Students are not required to attend regular class lectures.
B. The professor videotapes class lectures for review.
C. Classes are held at various locations throughout the area.
D. Students receive credit for work experience.
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