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Welcome to the CDL Online Study Guide - DEMO VERSION, from Maryland New Directions, Inc.
Use your LEFT MOUSE BUTTON to click on the navigation arrows, and the different sections of the bus, when prompted.
To replay audio, click on the curved arrow button in the "Audio" section, or stop the narration by clicking on the "S" button.
To see the main menu, and a listing of other currently-available modules, click on the "house"-shaped button in the "Menu" section.