It is well-known to us all that knowledge is __ treasure, but practice is ___ key to it.
A.a, ∕ | B.a, the | C.the, the | D.∕ , the |
推荐套卷
It is well-known to us all that knowledge is __ treasure, but practice is ___ key to it.
A.a, ∕ | B.a, the | C.the, the | D.∕ , the |