单项选择题

A. Joining a club.
B. Using a timer.
C. Putting the computer in the living room.
D. Not spending hours uninterruptedly.
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单项选择题
A. Getting the work done in mixed groups of sizes.B. Having clear division of labor as a society.C. Each ant helping with all the tasks.D. All size groups are ideally suited to their jobs.
A. Getting the work done in mixed groups of sizes.
B. Having clear division of labor as a society.
C. Each ant helping with all the tasks.
D. All size groups are ideally suited to their jobs.
单项选择题
A. He doesn’t like to eat outdoors. B. He prefers to eat with a knife and fork. C. He has to eat with his hands. D. He hates hamburgers and salad.
A. He doesn’t like to eat outdoors.
B. He prefers to eat with a knife and fork.
C. He has to eat with his hands.
D. He hates hamburgers and salad.
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