单项选择题 A user reports it takes a long time to load all applications and the hard drive LED is showing constant activity. Which of the following is MOST likely the issue?（）

多项选择题 A laptop operates on battery power when connected with an AC adapter. Once the battery discharges, the computer turns off and will not turn back on. Which of the following are the MOST likely causes of the laptop issue? （）(Select TWO).

单项选择题 A technician discovers that RAM modules are overheating. Which of following is best practice inthis situation?（）