三个数字能组成多少组

简介：As for whether to recapture the iron ore, it is impossible in a short time. This time the beast tide was launched, the mutant beasts suffered heavy losses, and they were already exhausted. The next thing the mutant beast kings have to do is not to recapture the iron ore. But how to defend against the attack of the human army, after all, their strength is much weaker at this time.