题目内容

单结晶体管具有一个发射极、一个基极、一个集电极。

A. 正确
B. 错误

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You have a computer that runs Windows 7. The computer is configured to automatically download andinstall updates. You install Microsoft Office 2007. You need to ensure that service packs for Office areautomatically installed. What should you do?()

A. From Windows Update, select Restore hidden updates.
B. From Windows Update, select Get updates for other Microsoft products.
Create a folder named Updates in C:\Program Files\Microsoft Office. Install the Office Update InventoryTool into the Updates folder.
Download and install the Office 2007 administrative template and disable the Block updates from theOffice Update Site from applying policy.

下列因素会造成隐形义齿的人工牙和基托结合不良,除外()

A. 缺牙间隙过大
B. 咬合过紧
C. 人工牙打磨过薄
D. 固位孔不足或过细
E. 人工牙过小过短

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