The main components of the Policy Model include

策略模型的主要组件包括

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As the name implies, the MVC has three main parts, the Model, the View, and the controller.

正如名称所蕴含的，MVC具有三个主要部分，Model(模型)、View(视图)和Controller(控制器)。

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On the Design model, open the Main diagram and complete these steps.

在这个Design模型中，打开这个Main图表并完成这些步骤。

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The main difference being that the more traditional model, featuring pro-rata allocation and collection of payment for order flow, is more geared towards one facet of the investing community, comprised in large part by retail investors who are using options limit orders and other very simple strategies.

FORBES: Examining The Options Flash

Through a casting company, they found a high-school model and an New York University student to play the main characters in photos and videos.

WSJ: Enhanced E-Books: Blowing Up the Book

Civil servants construct their own financial model when preparing to award long-term contracts such as the West Coast Main Line franchise.

BBC: West Coast Main Line: Taxpayers 'at risk' in rail bid