Why does Honda Accord have two throttle lines?

One is the accelerator cable, and the other is the cable that controls the shift of the automatic gearbox; Nonsense from the second floor! Do you need cable control for cruise control? Moreover, not every Accord has a fixed speed cruise! For example, in the 7th generation Accord of Guangben, only 2.4 has cruise control and 2.0 has no cruise control. It is said that this cable has nothing to do with cruise control, so the landlord should not be misled by his wrong answer.