27,16,5,( ),1/7。
A.16 B.1 C.0 D.2
27,16,5,(),1/7 A.16;B.1;C.0;D.2;
:27,16,5,(),17。A.16 B.1 C.0 D.2
5,16,27,16,1,() A.4B.2C.0D.1/7
1/16,1/27,1/16,1/5,______,7 () A.1/16 B.1 C.2 D.1/24
2, 1, 7, 1,8, ()。A.1 B.16 C.17 D.256
27,16,5,(),1/7。 A.16 B.1 C.0 D.2