A.選擇了一個空閑的工作區(qū) B.顯示出錯信息 C.選擇了0號工作區(qū) D.選擇了空閑的最小號工作區(qū)
A.ZAP B.PACK C.RECALL D.DELETE
A.COPY TO BB DELIMITED WITH ″#″ B.COPY FROM AA DELIMITED WITH″#″ C.COPY TO BB DELIMITED WITH # D.COPY FROM AA DELIMITED WITH #