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  • 分式化简求值删除

1编号:6356题型:单选题测试正确率:76.19%

2编号:6355题型:单选题测试正确率:73.81%

3编号:6354题型:单选题测试正确率:85.71%

4编号:6353题型:单选题测试正确率:71.43%

5编号:6352题型:单选题测试正确率:42.86%

-1,y=2时,=()

6编号:6351题型:单选题测试正确率:100.0%

7编号:6285题型:单选题测试正确率:57.76%

8编号:6155题型:单选题测试正确率:80.0%

9编号:6108题型:单选题测试正确率:41.24%

10编号:6107题型:单选题测试正确率:42.61%

若实数a满足,则=()