多项选择题 Which of the following multimeter settings should only be used when there is no electrical flow through the part being tested? （）(Select TWO).

单项选择题 Which of the following access levels allows a user to perform normal day to day work with their own files but does not allow them to change system files or computer performance?（）

单项选择题 Malware is removed and a computer is rebooted. Later, the malware is found on the computeragain. Which of the following would permanently solve this problem?（）