单选题:To fetch a data from main memory in a demand paging system requi
To fetch a data from main memory in a demand paging system requires ______ accesses to the physical memory.@[B](1)
A. 1
B. 2
C. 3
D. 4
A.1
B.2
C.3
D.4
答案:B
A. 1
B. 2
C. 3
D. 4
A.1
B.2
C.3
D.4
答案:B