题目内容

Shareware is freely distributed to users on trial basis.

A. 对
B. 错

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Open source software is prohibited from modification.

A. 对
B. 错

Linux operating system is a commercial software.

A. 对
B. 错

Kali is an application program.

A. 对
B. 错

Microsoft Office is an operating system?

A. 对
B. 错