Extant questions的用法和樣例：
例句
- The application of probiotic bacteria is one of extremely effective ways to solve the extant questions in aquiculture.
益生菌的應用是對水產(chǎn)養殖業(yè)現存問(wèn)題十分有效的解決途徑之一。 - Using the Case based reasoning technology during the course of design, people can use experiences to solve current questions.
在設計時(shí)能運用基于實(shí)例的推理方法，從以往的設計實(shí)例中得出與現在問(wèn)題最相似的實(shí)例，用以往的設計經(jīng)驗來(lái)解決現存問(wèn)題。
