A user states that they are trying to project their laptop to a screen for a presentation. They have plugged the projector cable into their laptop, and turned the projector on, but no signal is found. Which of the following should the technician perform F

题目

A user states that they are trying to project their laptop to a screen for a presentation. They have plugged the projector cable into their laptop, and turned the projector on, but no signal is found. Which of the following should the technician perform FIRST?（）

A. Ensure the projector is receiving power

B. Verify the laptop is not running on battery

C. Toggle the function key for displays

D. Replace the projector cable with another

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参考答案和解析
参考答案：C
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    C.States’legitimate role in immigration enforcement
    D.Congress’s intervention in immigration enforcement

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    A.Federal officers’duty to withhold immigrants’information.
    B.States’independence from federal immigration law.
    C.States’legitimate role in immigration enforcement.
    D.Congress’s intervention in immigration enforcement.

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    解析：

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    C．＜jsp:useBean class=”user.Use.class”/＞

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