B
A
B
B
B
C
C
A
A
A
B
C
D
C
B
C
B
B
D
D
B False
A
D
B
B
B
A
A
C
C
C
C
D
B
B
D
C
B
D
A
B
B
B
B
B
A
A
B
A
D
C
Huawei Cloud Computing HCIA Topic 1
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Origin blog.csdn.net/qq_45179904/article/details/127955597
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