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所有的货币都具有时间价值。()

A. 正确
B. 错误

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听力原文:M: Where is the doctor's office?
W: He will see you in Room 6. It's on the third floor. It's the second door on the left.
Q: Where is the doctor?
(5)

A. In Room 2.
B. In Room 3.
C. In Room 6.
D. In Room 4.

听力原文:W: Can I see your passport and ticket?
M: This is a duty-free shop. You can be admitted only with a passort and a ticket.
Q: What are necessary for being admitted into a duty-free shop?
(2)

A. Passports and checks.
B. Tickets and passports.
C. Passports.
D. Tickets.

Music comes in many forms; most countries have style. of their own【B1】the turn of the century when jazz was born, America had no prominent【B2】of its own. No one knows exactly when jazz was【B3】, or by whom. But it began to be【B4】in the early 1900s. Jazz is America's contribution to【B5】music. In contrast to classic music, which【B6】formal European traditions, jazz is spontaneous and free-form. It bubbles with energy, 【B7】the moods, interests, and emotions of the people. In the 1920s jazz【B8】like America. And【B9】it does today.
The【B10】of this music are as interesting as the music【B11】. American Negroes, or blacks, as they are called today, were the jazz【B12】. They were brought to the Southern states【B13】slaves. They were sold to plantation owners and forced to work long【B14】. When a Negro died his friends and relatives【B15】a procession to carry the body to the cemetery. In New Orleans, a band often accompanied the【B16】. On the way to the cemetery the band played slow, solemn music suited to the occasion.
【B17】on the way home the mood changed. Spirit lifted. Death had removed one of their【B18】, but the living were glad to be alive. The band played【B19】music, improvising on both the harmony and the melody of the tunes【B20】at the funeral. This music made everyone want to dance. It was an early form. of jazz.
【B1】

At
B. In
C. By
D. On

优先股的等级一般会高于同一个企业发行的债券的级别。()

A. 正确
B. 错误

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