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? ?. 1. ??? I.D ??. 1) ??? I.D ??? ??? ??? ? ???? I.D ? ????? ??? ?? ???.2) (?? 1-1) ?? ?? ??? Insert ??? ???? (?? 1-2)? ?? ???.3) (?? 2-2) ?? ?? ? ??? ??? ? Save ??? ???? ?? ???.4) ?? ?? ??? ??? ????. ????(1??) ??(4??) => ?) A1001, A1002, ???? A = ???, B = ????, C = ?????
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