单项选择题
Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions.
Now, listen to the passage.
According to the passage, the telephone was invented in
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A. France.
B. Rome.
C. Africa.
D. America.
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单项选择题
A. organize B. orient C. establish D. classify
A. organize
B. orient
C. establish
D. classify
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单项选择题
Why did the natural pearl trade collapse in the 1930s
A. Because of competition from cheaper Japanese pearl-fishing.
B. Because of competition from oil industry.
C. Because of competition from cheaper Japanese cultured pearls.
D. Because of pollution from oil industry.
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