A . SELECT*FROMorderWHEREYEAR(签订日期)=2007ORDERBY金额DESCB . SELECT*FROMorderWHILEYEAR(签订日期)=2007ORDERBY金额ASCC . SELECT*FROMorderWHEREYEAR(签订日期)=2007ORDERBY金额ASCD . SELECT*FROMorderWHILEYEAR(签订日期)=2007ORDERBY金额DESC
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