Youneedtorestoreyourdatabasebackto9/30/2008at18:00.Inwhatorderwouldyourunthefollowingcommandstocompetethistask?()a.restorecontrolfileuntiltime`09/30/2008:18:00:00’b.restoredatabaseuntiltime`09/30/2008:18:00:00’c.restorespfileuntiltime`09/30/2008:18:00:00’d.recoverdatabaseuntiltime`09/30/2008:18:00:00’e.alterdatabaseopenresetlogsf.alterdatabaseopen
A.b,d,e
B.b,d,f
C.c,a,b,d,e
D.c,a,b,d,f
E.a,b,d,e
第1题:
第2题:
第3题:
4、与像素(30,30,40)的色调相同的像素是
A.(20,20,30)
B.(30,40,30)
C.(30,30,20)
D.(20,70,30)
第4题:
第5题:
已知在观测单一角度时,终边的读数为145°30′30″,起始边的读数为45°00′00″,则该水平角为?
A.100°30′30″
B.260°30′30″
C.-100°30′30″
D.-260°30′30″