A.34
B.38
C.40
D.42
[单选题]0,2,6,12,20,30,( )。A.34B.38C.40D.42
[单选题]0,2,6,12,20,30,( )。A.34B.38C.40D.42
[单选题]0,2,6,12,20,30,( )。A.34B.38C.40D.42
[单选题]0,2,6,12,20,30,( )。A.34B.38C.40D.42
[单选题]0,2,6,12,20,30,( )。A.34B.38C.40D.42
[单选题]0,2,6,12,20,30,( )。A.34B.38C.40D.42
[单选题]0,2,6,12,20,30,( )。A.34B.38C.40D.42
[单选题]0,2,6,12,20,30,( )。A.34B.38C.40D.42
[单选题]0,2,6,12,20,30,( )。A.34B.38C.40D.42
[单选题]0,2,6,12,20,30,( )。A.34B.38C.40D.42