1编号:1868题型:填空题测试正确率:91.88%
化简:=______.
2编号:947题型:填空题测试正确率:88.63%
若有意义,则a能取的最小整数为____
3编号:818题型:填空题测试正确率:86.82%
若有意义,则a能取的最小整数为____.
提醒: