题目内容

若甲、乙两种土的不均匀系数相同,则两种土的()。

A. 颗粒级配累计曲线相同
B. 有效粒径相同
C. 限定粒径相同
D. 限定粒径与有效粒径之比相同

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规范GB50268―2008修订,对开槽施工的预制成品管道,增加了预应力钢筋混凝土管(PCCP)、()、()及其复合管道内容。

尿崩症(diabetes insipidus)

You have a computer that runs Windows 7. A user installs a third-party media player on the computer. Youdiscover that all media files automatically open by using the third-party media player. You need to ensurethat all media files open automatically by using Windows Media Player. You must achieve this goal by usingthe minimum amount of administrative effort. What should you do?()

A. Select a media file. Right-click the file and select Open with.
B. Select a media file. Right-click the file and select Restore previous versions.
C. From Control Panel, modify the Set your default programs settings.
D. From Control Panel, modify the Set program access and computer defaults settings.

仪表对电源有什么要求?

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