单项选择题
A. Acquire the appropriate tools that are going to be used.
B. Touch the case to discharge static.
C. Remove loose jewelry.
D. Refer to manufacturer documentation.
单项选择题 Which of the following cable types is rated to be run through air ducts?（）
单项选择题 Which of the following cable types is used to transmit data from a satellite dish to the satellite modem?（）
单项选择题 Which of the following standards or encryption types is the MOST secure for wireless networking?（）