单项选择题

A. New ideas come up as you write.
B. Much time is spent on collecting data.
C. A lot of effort is made in vain.
D. The writer’s point of view often changes.
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单项选择题
A. It is a routine offer. B. It is quite healthy.C. It is new on the menu. D. It is a good bargain.
A. It is a routine offer.
B. It is quite healthy.
C. It is new on the menu.
D. It is a good bargain.
单项选择题
A. To calm themselves down. B. To enhance concentration. C. To show their impatience. D. To signal lack of interest.
A. To calm themselves down. B. To enhance concentration.
C. To show their impatience. D. To signal lack of interest.
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