单选题Which command shows all the paging spaces available on a system？（）Alsps -aBshowps -aCpsdisplay -lDswaplist -ALL
单选题
Which command shows all the paging spaces available on a system？（）
A
lsps -a
B
showps -a
C
psdisplay -l
D
swaplist -ALL
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解析：
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