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单选题
Make sure that the rate of supply of fuel from the wing tanks to the center tank is equal.
A
Make sure that the fuel quantity from the wing tanks to the center tank is the same.
B
Make sure that fuel from the wing tanks flows at the same rate into the center tank.
C
Make sure that the fuel flow supplied to the wing tanks and the center tank is at the same rate.
答案解析
正确答案：B
