1,1,2,6,24,()
A.48
B.96
C.120
D.122
:1,1,2,6,24,()。A.64B.78C.120D.136
1,-2,6,-24,() A.72 B.96 C.120 D.-120
1/6,1/6,1/12,1/24,() A.1/48B.1/28C.1/40D.1/24
1,1,2,6,24,()。 A.48B.96C.120D.144
主机地址122.34.2.160属于子网()。A.122.34.2.64/26 B.122.34.2.96/26 C.122.34.2.128/26 D.1
-30 -4 () 24 122 340。A.-1 B.-2 C.6 D.13