A co-worker is unable to invite you to a Microsoft Windows Meeting Space meeting. You need to receive an invite to the meeting.
 What should you do?（）

若，则必有（）。

若方程有解，则a的取值范围是（）。

You share your portable computer with a co-worker. You use separate user accounts to log on. A wireless netework is available to you and your co-worker. You need to prevent your co-worker from modifying your wireless network profile.
What should you do?（）

若f（x）的一个原函数是，则=（）。

若函数在处取得极值，则a的值是（）。

若级数收敛，则对级数a_n下列哪个结论正确（）？

完全随机设计的单因素方差分析中，，则统计推论是（）

A co-worker uses a gadget from the Windows Sidebar feature on their computer. You examine your computer and find that the gadget is not on the list of available gadgets. You need to add this gadget to the Windows Sidebar feature on your computer.
What should you do?（）