單項(xiàng)選擇題

A user reports that they walked away from their laptop for 30 minutes and when they came backthe screen was very dim. The user tried moving the mouse and increasing the brightness setting,but neither worked. Which of the following should the technician do FIRST?（）

A. Plug in an external monitor to test the video card.
B. Run a check disk scan to verify there is no corruption.
C. Check if the laptop is now on battery power.
D. Have the LCD screen replaced with a known good screen.

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單項(xiàng)選擇題

以下哪項(xiàng)子宮內(nèi)膜檢查屬于無創(chuàng)（）

A.經(jīng)陰道超聲
B.宮腔鏡檢查
C.宮腔造影
D.子宮內(nèi)膜取樣

單項(xiàng)選擇題

預(yù)拌砂漿是指由專業(yè)生產(chǎn)廠生產(chǎn)的，用于建設(shè)工程中的各類砂漿拌合物，預(yù)拌砂漿分為（）和濕拌砂漿兩種。

A.干拌砂漿
B.砂漿
C.砂石
D.混合砂漿

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A user reports that they walked away from their laptop for 30 minutes and when they came backthe screen was very dim. The user tried moving the mouse and increasing the brightness setting,but neither worked. Which of the following should the technician do FIRST?（）

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以下哪項(xiàng)子宮內(nèi)膜檢查屬于無創(chuàng)（）

預(yù)拌砂漿是指由專業(yè)生產(chǎn)廠生產(chǎn)的，用于建設(shè)工程中的各類砂漿拌合物，預(yù)拌砂漿分為（）和濕拌砂漿兩種。

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預(yù)拌砂漿是指由專業(yè)生產(chǎn)廠生產(chǎn)的，用于建設(shè)工程中的各類砂漿拌合物，預(yù)拌砂漿分為（）和濕拌砂漿兩種。