The elevators must move symmetrically.电梯必须对称移动。
A.The elevators must move in an even manner. B.The elevators must keep moving accordingly. C.The elevators must move correspondingly.正确答案C
The elevators must move symmetrically.电梯必须对称移动。
A.The elevators must move in an even manner. B.The elevators must keep moving accordingly. C.The elevators must move correspondingly.正确答案C