bef造句怎么写

The results showed: 1. Osseointegration could bef ormed on the interface after the bioactive glass ceramic was implanted in three months.

Curve equations were establish ed to simulate the weight growth of Lionhead geese under two feeding manners bef ore9weeks of age.

Therefore, it is no good simply deciding which is more objective, direct and closer to the ultimate goal. Neither should be emphasized bef…