In such a scenario, you might read only the minimal set of data that is required for the initial screen.
在这种情况下，可以只读取初始屏幕需要的部分数据。
This event handler is called at the very beginning so that the initial screen contents can be set to be viewed.
在刚启动时调用这个事件处理函数，将初始屏幕内容设置为可见。
The user is presented with an initial screen requesting that she enter her E-mail address and select several candidates from a Web form.
开始的时候，用户面前会出现一个屏幕，要求输入用户自己的电子邮件地址，并从一个Web表单中选择几个候选人。
The user is presented with an initial screen requesting that she enter her E-mail address and select several candidates from a Web form.
开始的时候，用户面前会出现一个屏幕，要求输入用户自己的电子邮件地址，并从一个Web表单中选择几个候选人。
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