单选题

The phrase “if not possible, advise” may be used together with the clearance or instruction _______ ．

Awhen the controller is in doubt about the capability of the pilot in complying with the clearance or instruction

Bafter an alternative clearance or instruction is offered

Cif the controller is sure that the pilot cannot comply with the clearance or instruction

Dwhen the controller is not ready to help the pilot

查看答案

正确答案：A （备注：此答案有误）

相似试题

单选题

The phrase “if not possible, advise” may be used together with the clearance or instruction _______ ．

答案解析
单选题

IF THE FLAPS DO NOT FULLY ( ), DO THE TEST AGAIN.

答案解析
单选题

If the. instrument does not operate correctly, do a test.

答案解析
单选题

If the adjustment of the stops is not correct, the results of the test will not be accurate.

答案解析
单选题

IF THE SCRATCH DOES NOT (go through) THE PROTECTIVE LAYER, THE UNIT IS SERVICEABLE.

答案解析