A．To show the key role played by air traffic controller-找考题网

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.

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单项选择题

A．Go through a health check.B．Take little luggage with them.C．Arrive early for boarding.D．Undergo security checks.

A．Go through a health check.
B．Take little luggage with them.
C．Arrive early for boarding.
D．Undergo security checks.

问答题

Because it is broad and shallow, the Great Valley has more the appearance of __________than of a valley.

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