50.What are the duties of a ROM,according to the text?

(A)a,b,c.
(B)a,b,d.
(C)b,c,d.
(D)a,c,d.
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統計: 尚無統計資料
統計: 尚無統計資料
50.What are the duties of a ROM,according to the text?

(A)a,b,c.
(B)a,b,d.
(C)b,c,d.
(D)a,c,d.