填空题
A.高度的一半B.杯口处C.插到杯肩部位D.高度的2/3
A.copy to boy for 性别="男"B.copy file da.dbf to boy.dbfC.copy stru to boy fields 姓名,年龄,奖学金D.select *from da where 性别="男"into dbf boy