S()。
第2题
A.G1=({S},{a},{S→aSa|S},S)
B.G1=({S,A},{a},{S→aA|a,A->aS},S)
C.G1=({S,A},{a},{S→aA|a,A->aa},S)
D.G1=({S},{a},{S→aS|a},S)
第3题
A.G1(s)+G2(s)
B.G1(s)G2(s)
C.G1(s)/G2(s)
D.G1(s)G2(s)/G1(s)+G2(s)
第7题
A.40Gb/s,20Gb/s,20Gb/s
B.40Gb/s,30Gb/s,10Gb/s
C.20Gb/s,10Gb/s,10Gb/s
D.30Gb/s,20Gb/s,10Gb/s