单选题：Which of the following statements is wrong from the operating sy

Which of the following statements is wrong from the operating system view? @[C](1)
A. Memory sometimes is used as a disk
B. Memory sometimes is used as read only
C. Memory sometimes is used as a USB flash drive
D. Memory sometimes is used as a disk cache





A.Memory sometimes is used as a disk
B.Memory sometimes is used as read only
C.Memory sometimes is used as a USB flash drive
D.Memory sometimes is used as a disk cache


答案：C