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1 The polygon mirror is located in which of the following components？（）

2 How many CCDs are located in a single pass duplex ADF？（）

3 Which of the following type of lamp is used for heating a fuser？（）

4 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？（）

5 Which of the following devices can route electrical signals only when activated by an external control signal？（）

CompTIA認(rèn)證考試PD0-001單項(xiàng)選擇題每日一練(2019.01.20)