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CompTIA認證考試PD0-001單項選擇題每日一練(2019.01.18)
來源：考試資料網(wǎng)
1
Which of the following devices can route electrical signals only when activated by an external control signal？（）
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2
When arriving at the customers location， two different users describe the problem， and from their description it seems to be two separate problems. Which of the following is an appropriate step to take？（）
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3
Which of the following failed components would be responsible for the fuser unit not heating properly？（）
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4
Which of the following items can be used as a discharge lamp？（）
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5
Which of the following is a reason black toner is used in color printers？（）
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