单项选择题

A．To show the key role played by air traffic controllers.
B．To show the great responsibility shouldered by the pilots.
C．To give an example of air disasters.
D．To show that air travel is far safer than driving a car.
<上一题 目录 下一题>
热门 试题

单项选择题
A．It was a dinner party.B．It was a neighborhood party.C．It was a birthday party.D．It was a bank party.
A．It was a dinner party.
B．It was a neighborhood party.
C．It was a birthday party.
D．It was a bank party.
单项选择题
A．They bumped into each other over a swimming pool.B．They avoided each other by turning in different directions.C．They narrowly escaped crashing into each other.D．One plane climbed above the other at the critical moment.
A．They bumped into each other over a swimming pool.
B．They avoided each other by turning in different directions.
C．They narrowly escaped crashing into each other.
D．One plane climbed above the other at the critical moment.
相关试题