单项选择题

What is the growing danger in air travel according to this passage

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
What happened to the two large jets
A．They bumped into each other over a swimming pool.
B．They avoided each other by turning in different direction.
C．They narrowly escaped crashing into each other.
D．One plane climbed above the other at the critical moment.
单项选择题
What will be done with the player, according to the woman
A．She will exchange it for a new one.
B．The man will get a refund.
C．The player will be repaired.
D．The player will be put under guarantee.
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