单项选择题
Passage One
Questions 26 to 28 are based on the passage you have just heard.
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A.Direct the driver.
B.Look ahead to see where there’s a turn.
C.Move to the back seat if feeling uncomfortable.
D.Keep looking at the map to find a place to go to.
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单项选择题
A.The hotel doesn’t open that day.B.She doesn’t work that day.C.There is no room available that day.D.There is no discount on books that day.
A.The hotel doesn’t open that day.
B.She doesn’t work that day.
C.There is no room available that day.
D.There is no discount on books that day.
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单项选择题
A.By producing pressure waves going in the opposite direction.B.By mixing new sound waves with the noise and sending them out together.C.By mixing high-frequency sound waves with low-frequency ones.D.By making a copy of the unwanted sound waves and letting it out a little later.
A.By producing pressure waves going in the opposite direction.
B.By mixing new sound waves with the noise and sending them out together.
C.By mixing high-frequency sound waves with low-frequency ones.
D.By making a copy of the unwanted sound waves and letting it out a little later.
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