单选题

The center of gravity is the point an airplane would balance if suspended.

A If an airplane is suspended, if would balance at the point called the center of gravity.

B The center of gravity is the point of an airplane; it would hardly balance if suspended.

C If an airplane is hung; it wouldn‘t balance at the point called the center of gravity.

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正确答案：A （备注：此答案有误）

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