第12题:[单选题]为什么发动机前、后吊点要分别传递推理和扭转载荷?( )Why the forward and aft mount can not transmits engine torque loads or thrust together? A.以容许发动机热膨胀 To allow engine thermal expansion. B.使发动机结构受力平衡 keep the loads balance of the engine structure. C.满足习惯要求 meet custom required. 参考答案:A