When pilots _______ back on the wheel, the nose of the aircraft moves up.

单选题

When pilots _______ back on the wheel, the nose of the aircraft moves up.

答案解析

单选题

When establishing communications, _______ ．

答案解析

单选题

When properly used, flaps _______ ．

答案解析

单选题

In order to save taxiing time for training purpose pilots may request to make a “touch and go”, which means the aircraft _______ ．

答案解析

单选题

When ground-air communication failure occurs, controller should _______.

答案解析