【判断题】
A、DG1J B、DGJ C、FDGJ1 D、DGJF
A、ALTER DISKGROUP dg1 UNDROP disk2, disk3, disk5; B、ALTER DISKGROUP dg1 UNDROP; C、ALTER DISKGROUP dg1 UNDROP DISKS; D、You cannot cancel the pending disk drops.
A、DG 1dg1=delegate {return 0.3;}; B、DG 1dg2=delegate {return a;}; C、DG 1dg3=delegate (int a,ref double b) {return a;}; D、DG 1dg4=delegate (int a,ref double b) {return a/b;};