题目内容

What are the two most common types of memory?

A. Static RAM and dynamic RAM
B. Screens and scanners
C. ALU and CU
D. File servers

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Which of the following elements is an output device?

A. Image scanner
B. Monitor
C. Mouse
D. Touch screen

What devices are used to enter information into the system?

A. RAMs
B. Projections
C. Output devices
D. Input devices

Which device can generate (生成) a hard copy of the electronic data stored on a computer?

A. Laser printers
B. Screens
C. Simulators
D. Microphones

在选择地表水源时，首先考虑采用（）。

A. 江河水，湖泊水
B. 水库水
C. 海水
D. 承压水