单项选择题
A.none B.ddl C.dml D.mod
A.正确 B.错误 C.视情况而定 D.不确定
A.sys_ctl stop-m smart-D/data B.sys_ctl stop-m fast-D/data C.sys_ctl stop-m immediate-D/data D.sys_ctl stop-m abort-D/data