1编号:21266题型:单选题测试正确率:41.46%

2编号:21265题型:单选题测试正确率:43.9%

3编号:21264题型:单选题测试正确率:48.78%

4编号:21263题型:单选题测试正确率:57.56%

5编号:21262题型:单选题测试正确率:49.76%

6编号:21261题型:单选题测试正确率:56.59%

7编号:21260题型:单选题测试正确率:52.68%

8编号:21259题型:单选题测试正确率:73.66%

9编号:21258题型:单选题测试正确率:62.44%

10编号:21028题型:单选题测试正确率:0%

如图,在长方形纸片ABCD中,AB=8cm,把纸片沿对角线AC折叠,点B落在点E处,AE交DC于点F,若AF=,则AD的长是多少?()