单项选择题
A.9 B.11 C.13 D.15
40 80 119 157 193 ()A.350B.228C.240D.220
单项选择题40 80 119 157 193 ()
A.350 B.228 C.240 D.220
1/2 1/8 1/16 1/26()A.1/40B.1/38C.1/36D.1/60
单项选择题1/2 1/8 1/16 1/26()
A.1/40 B.1/38 C.1/36 D.1/60
3 8 7 11 11 14 ()A.14 17B.15 17C.16 18D.13 18
单项选择题3 8 7 11 11 14 ()
A.14 17 B.15 17 C.16 18 D.13 18