9个数复式二中二多少组怎么算

简介：Gatling's accuracy is not high, and the error of bullets is quite large. Although after evolving into an energy firearm, the recoil is much smaller, but the error is still there. However, under Qin Fen's precise control, many bullets flew from the thunderbolt flying upside down. The sticks passed by, but none of them hit the thunder sticks. This is the most admirable thing!