单项选择题

Passage One Questions 26 to 28 are based on the passage you have just heard.

A．Crowded air traffic.
B．The large size of airplanes.
C．Mistakes by air traffic controllers.
D．Bad weather.
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单项选择题
A．The presence of life-forms far below the Earth’s surface.B．The risk of infection from rare strains of bacteria.C．Fictional representations of a hidden underground world.D．The reliability of evidence collected by new drilling methods.
A．The presence of life-forms far below the Earth’s surface.
B．The risk of infection from rare strains of bacteria.
C．Fictional representations of a hidden underground world.
D．The reliability of evidence collected by new drilling methods.
单项选择题
A．Try to help him from rooms in another hotel.B．Check to see if there are any vacancies in here hotel.C．Let him move to a room with two single beds.D．Show him the way Imperial Hotel.
A．Try to help him from rooms in another hotel.
B．Check to see if there are any vacancies in here hotel.
C．Let him move to a room with two single beds.
D．Show him the way Imperial Hotel.
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