How do you decide which is the most effective access method for the query?
如何为查询判定哪一种访问方法是最有效的呢？
News writing has an important role in people's timely and effective access to information.
新闻写作对人们及时、有效地获取信息等方面具有重要作用。
A key challenge in Web services security is the design of effective access control schemes.
一个关键的安全挑战就是要设计有效的访问控制机制。
A key challenge in Web services security is the design of effective access control schemes.
一个关键的安全挑战就是要设计有效的访问控制机制。
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