A．Flies need less sleep than humans.B．Humans need a similar amount of sleep with flies
A. Flies need less sleep than humans.
B. Humans need a similar amount of sleep with flies.
C. The amount of human sleep is determined by certain gene.
D. Flies can determine how much sleep they need.
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A．They can not accomplish their daily tasks.B．They suffer injuries from less amount of
A. They can not accomplish their daily tasks.
B. They suffer injuries from less amount of sleep.
C. They get no damage in their performance.
D. They operate worse than normal.
A．The Celts.B．The Jutes.C．The German.D．The Norman rulers.
A. The Celts.
B. The Jutes.
C. The German.
D. The Norman rulers.
听力原文：M: It's the mildest day in this winter. Do you want to go for a bike ride after the class？
W: When could we start at the latest？ Today's last class is an experiment class and it often runs late.
Q: What do we learn about the woman from the conversation？
(18)
A. She might be late for her experiment class.
B. She doesn't have a bike.
C. She might be delayed by her last class.
D. She might be late for her experiment class.
What is the advantage of the Great Depression, according to Time？
A. It increased the youth chances for a better job.
B. It increased the youth's crisis awareness.
C. It made the youth learn to be mature.
D. It made the youth more patriotic.
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