Write the working of dot matrix printer?

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The narrative structure of the popular movies can be broken down into

Which of the following tasks is an audio technician most likely to perform while working on a nature documentary? (select all that apply). eliminating potentially distracting background noise adding sound effects making sure the lighting is adequate for a particular scene changing the narration to better match the mood of the documentary

How is the brightness of oled of the diaplay is controled