文法:S → 0SS → 0产生的语言是什么( )
A: L = { [img=18x19]18031ce1d3a86ba.png[/img] | n>0 }
B: L = { [img=18x19]18031ce1d3a86ba.png[/img] | n≥0 }
C: L = { [img=34x19]18031ce1e4c1415.png[/img] | n>0 }
D: L = { a,b }*
A: L = { [img=18x19]18031ce1d3a86ba.png[/img] | n>0 }
B: L = { [img=18x19]18031ce1d3a86ba.png[/img] | n≥0 }
C: L = { [img=34x19]18031ce1e4c1415.png[/img] | n>0 }
D: L = { a,b }*
举一反三
- 下列各组表示核外电子运动状态的量子数中合理的是 A: n = 3,l = 3 ,m = 2,ms = [img=9x43]18032eba50af373.png[/img] B: n = 2,l = 0 ,m = 1,ms =[img=9x43]18032eba50af373.png[/img] C: n = 1,l = 0 ,m = 0,ms =[img=9x43]18032eba50af373.png[/img] D: n =0,l = 0 ,m = 0,ms =[img=9x43]18032eba50af373.png[/img]
- 下列各组表示核外电子运动状态的量子数中合理的是 A: n = 3,l = 3 ,m = 2,ms = [img=9x43]18032eb4a424036.png[/img] B: n = 2,l = 0 ,m = 1,ms =[img=9x43]18032eb4a424036.png[/img] C: n = 1,l = 0 ,m = 0,ms =[img=9x43]18032eb4a424036.png[/img] D: n =0,l = 0 ,m = 0,ms =[img=9x43]18032eb4a424036.png[/img]
- 下列各组表示核外电子运动状态的量子数中合理的是( )。 未知类型:{'options': ['n = 3,l = 3 ,m = 2,[img=85x96]17da64ab3593994.png[/img]= -1/2', 'n = 0,l = 0 ,m = 0,[img=85x96]17da64ab3593994.png[/img]= -1/2', 'n = 1,l = 0 ,m = 0,[img=85x96]17da64ab3593994.png[/img] = +1/2', 'n = 2,l = 0 ,m = 1,[img=85x96]17da64ab3593994.png[/img]= +1/2'], 'type': 102}
- 下列各组量子数中错误的是 。 A: n=3,l=2, m=0, [img=22x17]1803dcfc2666d50.png[/img] =+1/2 B: n=4, l=1, m=0, [img=22x17]1803dcfc2666d50.png[/img] =-1/2 C: n=2, l=2, m=-1, [img=22x17]1803dcfc2666d50.png[/img] =-1/2 D: n=3, l=1, m=-1, [img=22x17]1803dcfc2666d50.png[/img] =-1/2
- 文法G[N]为:N→D|ND D→0|1|2|3|4|5|6|7|8|9 G[N]的语言是什么? A: L(G[N])={[img=23x19]180344213df2ad7.png[/img] | V∈ {0,1,2,3,4,5,6,7,8,9},n>=1} B: L(G[N])={非负整数} C: L(G[N])={允许0 开头的非负整数} D: L(G[N])={[img=23x19]180344213df2ad7.png[/img] | V∈ {0,1,2,3,4,5,6,7,8,9},n>=0}