单项选择题 A technician is going to install a gigabit Ethernet adapter into a laptop for a customer. Which of the following technologies is MOST likely being used in this installation?（）

单项选择题 User 1 has a printer connected to a PC. User 2 is requesting the ability to print large documents to that printer. Which of the following is the BEST way for User 2 to gain access to the printer?（）

单项选择题 Which of the following is the form factor of a standard S-video connector?（）