单选题：The symbol “volatile” in the Linux kernel source codes means__.
The symbol “volatile” in the Linux kernel source codes means__. @[A](1)
A. to tell the compiler that the variables need not be optimized
B. to tell the compiler that the variables should be cached to registers
C. to indicate that the variables must be locked in memory
D. to indicate that the variables need not be backed up to nonvolatile disks
A.to tell the compiler that the variables need not be optimized
B.to tell the compiler that the variables should be cached to registers
C.to indicate that the variables must be locked in memory
D.to indicate that the variables need not be backed up to nonvolatile disks
答案：A
A. to tell the compiler that the variables need not be optimized
B. to tell the compiler that the variables should be cached to registers
C. to indicate that the variables must be locked in memory
D. to indicate that the variables need not be backed up to nonvolatile disks
A.to tell the compiler that the variables need not be optimized
B.to tell the compiler that the variables should be cached to registers
C.to indicate that the variables must be locked in memory
D.to indicate that the variables need not be backed up to nonvolatile disks
答案：A