单项选择题

A. Sufficient sleeping time.
B. Good personal sleeping habits.
C. Reasonable traveling schedule.
D. A proper schedule for light exposure.
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单项选择题
A. To buy a used bike.B. To buy a racing bike.C. To buy a touring bike.D. To trade her old bike for a new one.
A. To buy a used bike.
B. To buy a racing bike.
C. To buy a touring bike.
D. To trade her old bike for a new one.
单项选择题
A. She doesn’t understand it either.B. She can’t see the notice on the board clearly.C. She thinks the room is too dark her to see clearly.D. She didn’t really notice the mark on the board.
A. She doesn’t understand it either.
B. She can’t see the notice on the board clearly.
C. She thinks the room is too dark her to see clearly.
D. She didn’t really notice the mark on the board.
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