题目内容
People who travel by air across time zones will not suffer from "jet lag" if they get good
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【C13】
【C12】
听力原文：M: I'm sorry, Madam. The train is somewhat behind schedule because of the fog. Take a seat and I'll tell you as soon as we know something definite.
W: Thank you. I'll just sit here and read a magazine in the meantime.
Q: What do we learn from the conversation？
(16)
Oysters are found to have a persistent rhythm.
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