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Conversation:What is the purpose of Mr. Brown's visit?[音频]

A. Business.
B. Pleasure.
C. Partly business and partly pleasure.
D. Not mentioned in the conversation.

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Conversation:How long will Mr. Brown be staying?[音频]

About a year.
B. About a month.
C. At least a year.
D. Less than a week.

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Conversation:What luggage does Mr. Brown have?[音频]

A small suitcase and a box with tools.
B. A small suitcase with some products.
C. A small box with some documents.
D. A small suitcase and a box with some products.

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Passage:[音频]I arrivedin plenty of time and, but I only had one small suitcase, so Idecidedto take it on the plane as. While I was sitting there drinking andreading, I wasn't aware of a woman and her child at the next table. Idid notthem and when was called, I reached for my suitcase and left.

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汽蚀比转速反映了泵的抗汽蚀性能,而且()

A. 汽蚀比转速越大,泵的抗汽蚀性能越好
B. 汽蚀比转速越大,泵的抗汽蚀性能越差
C. 汽蚀比转速大小,与泵的抗汽蚀性能无关
D. 以上都不正确

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Conversation:What is the purpose of Mr. Brown's visit?[音频]

A. Business. B. Pleasure. C. Partly business and partly pleasure. D. Not mentioned in the conversation.

Conversation:How long will Mr. Brown be staying?[音频]

Conversation:What luggage does Mr. Brown have?[音频]

Passage:[音频]I arrivedin plenty of time and, but I only had one small suitcase, so Idecidedto take it on the plane as. While I was sitting there drinking andreading, I wasn't aware of a woman and her child at the next table. Idid notthem and when was called, I reached for my suitcase and left.

汽蚀比转速反映了泵的抗汽蚀性能,而且()

A. Business.
B. Pleasure.
C. Partly business and partly pleasure.
D. Not mentioned in the conversation.