1编号:18562题型:单选题测试正确率:86.0%
若x3y5与4x5-my2+n是同类项,则m+n的值为()
2编号:18561题型:单选题测试正确率:68.45%
若x4y6与6x2-my2n是同类项,则mn的值为()
提醒: