题目内容
Now will the man travel to the airport？
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Part B
Directions: You will hear four dialogues or monologues. Before listening to each one, you will have 5 seconds to read each of the questions which accompany it. While listening, answer each question by choosing A, B, C or D. After listening, you will have 10 seconds to check your answer to each question. You will hear each piece ONLY ONCE.
听力原文： W: Did you hear the thunder last night？
M: Did I？ It was really loud.
W: I didn't see any lightning though. I thought that thunder and lightning always occur together.
M: They do. It's not possible to have one without the other since thunder is a direct result of lightning.
W: Really？
M: Yes. Thunder is produced by the rapid expansion and contraction of highly heated air along the path of an electrical discharge.
W: In other words, lightning quickly heats the air and causes thunder. But if the lightning is there, why can't we see it？
M: Because it sometimes occurs very high in the clouds.
W: I wonder whether it's possible to see the lightning and not to hear the thunder.
M: Yes. It's possible if the lightning flashes are far enough away. Sound doesn't travel as far as light.
What is the main topic of the conversation？
Why does the man want to write about the ancient civilizations of Mexico？
资产负债表上的“长期应付款”项目，应根据“长期应付款”科目的期末余额，减去“未确认融资费用”科目期末余额后的金额填列。
我国《企业会计制度》规定，我国企业的利润表采用多步式。
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