单项选择题

Which of the following printer types uses thin print pins to transfer ink from a fiber or ribbon？（）

A.impact
B.laser
C.solid ink
D.ink jet

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A new computer is displaying the wrong amount of memory. Which of the following may be the cause？（）

A.The module is installed backwards.
B.A USB device is using some memory.
C.An onboard video card is using some memory.
D.The CPU is using some memory.

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A technician receives a laptop that is running out of battery power more quickly than expected.Which of the following can the technician do to correct the problem？（）

A.Note on the work order that the laptop is losing battery capabilities and the laptop must be replaced.
B.Replace the battery by purchasing a new battery from the manufacturer.
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单项选择题

Which of the following would be the safest environmental condition for working on multiple systems at one time？（）

A.A tiled room with anti-static mats and wrist straps.
B.A clean， carpeted room with anti-static mats and wrist straps.
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D.A clean， carpeted room with air purifiers and dehumidifiers.

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Which of the following printer types uses thin print pins to transfer ink from a fiber or ribbon？ （）

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Which of the following printer types uses thin print pins to transfer ink from a fiber or ribbon？（）