单项选择题
Which of the following can be installed to avoid brown outs?（）
A. A larger electrical breaker B. An inline fuse box C. A UPS D. Multiple power supplies
单项选择题 Which of the following would be included when documenting the MOST recent policy on corporatebehavior? （）
单项选择题 Which of the following is an example of a Class B TCP/IP address?（）
单项选择题 Which of the following pin pairs remain with the same wire color for either T568A or T568B?（）
