（）是研究作用在液体上的力与运动要素之间的关系，以及液体运动的基本规律。

伦敦黄金市场

名词解释伦敦黄金市场

You install a custom application on a computer that run...

单项选择题

You install a custom application on a computer that runs Microsoft Windows XP. The application stores each user’s data in the %programfiles%\app1\data folder on the computer. You install the custom application on a computer that runs Windows Vista.
On the Windows Vista computer, you back up the %programfiles%\app1\data folder and notice that the backup contains no data.
You need to back up the application’s user data on the Windows Vista computer.
What should you do?（）

What are two requirements to perform a warm Cisco IOS u...

多项选择题What are two requirements to perform a warm Cisco IOS upgrade on a Cisco ISR router? （）(Choose two.)