单项选择题
A.y Mod 4=0 And y Mod 100<>0 Or y Mod 400=0 B.y Mod 4=0 C.y Mod 4=0 Or y Mod 100<>0 And y Mod 400=0 D.y Mod 400=0
A.dim s as double B.dim s as long C.dim s as integer D.dim s as string
A、a<=xAndx<b B、a<=xOrx<b C、a≦xAndx<b D、a<=x<b