单选题：Assume that the page reference string as 1，3，7，3，4，2， 3，2，6，2，1，

Assume that the page reference string as 1，3，7，3，4，2， 3，2，6，2，1，5，6，2，1; the system has 3 frames and all 3 frames are initially empty.
LRU replacement will make __________ page faults. @[D](1)
A. 8
B. 9
C. 10
D. 11



A.8
B.9
C.10
D.11


答案：D