作为一个例子，这个manual . jsp页面要求用户解答四个简单的数学公式。
As an example, the manual.jsp page asks the user to solve four simple mathematical equations.
不过，在连接到EIS之前，向导的第二个页面要求提供连接信息(如用户名和密码)，如图3所示。
However, before it connects to the EIS, the second page of the wizard asks for connection information like a username and password as Figure 3 shows.
比如，如果一个没有进行身份验证的用户试图访问受保护的资源，ETF将显示一个登录页面要求用户进行身份验证。
For example, if a non-authenticated user attempts to access a protected resource, ETF serves the login page inviting the user to authenticate.
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