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1编号:83082题型:单选题测试正确率:0%

(1)计算:若a,b互为相反数,c,d互为倒数,则代数式的值为(    )

2编号:57649题型:单选题测试正确率:64.63%

3编号:57648题型:单选题测试正确率:71.26%

4编号:57647题型:单选题测试正确率:71.66%

5编号:57154题型:单选题测试正确率:63.08%

6编号:57153题型:单选题测试正确率:61.65%

7编号:57152题型:单选题测试正确率:62.72%

8编号:57151题型:单选题测试正确率:67.38%

9编号:57150题型:单选题测试正确率:57.71%

10编号:57149题型:单选题测试正确率:62.37%

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