单项选择题
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
3 9 27 81 ()A.243B.342C.433D.135
单项选择题3 9 27 81 ()
A.243 B.342 C.433 D.135
3/2 13/4 41/8()A.113/16B.225/32C.129/16D.67/8
单项选择题3/2 13/4 41/8()
A.113/16 B.225/32 C.129/16 D.67/8