1.5,4.5,13.5,16.5,( )。A.21.5B.34.5C.49.5D.47.5

1.5,4.5,13.5,16.5,( )。

A.21.5

B.34.5

C.49.5

D.47.5


相关考题:

1.5,4.5,13.5,16.5,( )A.21.5B.34.5C.49.5D.47.5

1.5,4.5,13.5,16.5,()A、21.5B、34.5C、49.5D、47.5

单选题1.5,4.5,13.5,16.5,()A21.5B34.5C49.5D47.5