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单选题
飞机如果悬挂起来，能保持平衡的那点即为“重心”。重心到基准面的距离是通过总力矩除以飞机的总重量得到的。
A
Center of Gravity is the point at which an airplane would balance if suspended. Its distance from the reference datum is found by multiplying the total moment with the total weight of the airplane.
B
Center of Gravity is the point at which an airplane would not balance if suspended. Its distance from the reference datum is found by dividing the moment with the weight of the airplane.
C
Center of Gravity is the point at which an airplane would balance if suspended. Its distance from the reference datum is found by dividing the total moment by the total weight of the airplane.
答案解析
正确答案：C
