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【简答题】
An operating system is a program,which acts as an interface between a user of a computer and the computer hardware.The purpose of an operating system is to provide an enviroment in which a user may execute program.In general, however, there is no completely definition of an operating system.
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皮皮学刷刷变学霸
举一反三
【简答题】函数 当x 时为无穷小
【单选题】参与颅前窝组成的骨有
A.
额骨 、 顶骨 、 颞骨
B.
枕骨 、 颧骨 、 蝶骨
C.
筛骨 、 额骨 、 蝶骨
D.
筛骨 、 犁骨 、 蝶骨
E.
筛骨 、 顶骨 、 额骨
【简答题】Answer the following questions briefly after study of the contents of Capter 2 If a French company imports non-restricted goods from the USA to France, what documents does it need? Are there special ...
【单选题】What does the company want the employees to check when they wear their uniform?
A.
If they wear the name tag on their jacket
B.
If their ties are long enough
C.
If they wear hats
D.
If they varnished their shoes
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