()operating systems are used for handheld devices such as smart-phones.(2017年上半年程序员综合知识真题答案与解析)
()operating systems are used for handheld devices such as smart-phones.(2017年上半年程序员综合知识真题答案与解析)
A、Mobile
B、Desktop
C、Network
D、Timesharing
参考答案: A
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