26.           (   ) 下列軟體中,有幾項屬於作業系統? (1)Android (2)Microsoft Word (3)iOS (4)Windows 8 (5)WinRAR (6)Linux
(A)4
(B)3
(C)2
(D)1

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統計: A(55), B(3), C(2), D(1), E(0) #1011408