单选题

Maximum landing gear operating speed is the maximum speed at which the landing gear can be safely extended or retracted.

Amaximum landing gear operating speed is the limited Speed at which the landing gear can be safely extended or retracted.

B maximum landing gear operating speed is the largest speed at which the landing gear can be safely extended or retracted.

C maximum landing gear operating speed is the normal speed at which the landing gear can be safely extended or retracted.

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正确答案：A （备注：此答案有误）

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