Using the custom call back handler will provide better features and the ability to pass the username and password dynamically from the client's session context.

使用自定义回调处理器将提供更好的特性，并提供从客户端会话上下文动态传递用户名和密码的功能。

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But the Labour party appeared reluctant to back the professor's call to abolish selection by ability.

BBC: Private sector 'barrier to equality'