日韩欧美亚洲 _ 欧美亚洲一区 _ 日本亚洲欧美 _ 亚洲精品欧美国产白袜脚足J棉袜在线观看_亚洲熟妇av一区二区三区_久久天天躁狠狠躁夜_精品众筹模特私拍在线

單項(xiàng)選擇題

Which of the following should be used to check a serial port for functionality?（）

A. Loopback plug
B. Toner probe
C. Multimeter
D. Cable tester

你可能感興趣的試題

單項(xiàng)選擇題

A service fails to start. Which of the following places can a technician go to find the services console?（）

A. System configuration utility
B. Device Management
C. Task Manager
D. Computer Management

單項(xiàng)選擇題

Which of the following is a speed enhancement in Windows performance when searching for files?（）

A. Indexing
B. Formatting
C. Disk Cleanup
D. System Restore