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单选题
The man page for command shows the following syntax: The man page for command shows the following syntax: command [ -a | -b ] Which of the following statements is true regarding this entry?（）
A
Either the -a or flag -b may be used, but not both.
B
If the flag -a is used then the flag -b also must be used.
C
One of the -a or -b flags must be used, but not both at the same time.
D
Both the flags may be used together, but neither are mandatory.
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更多 “单选题The man page for command shows the following syntax: The man page for command shows the following syntax: command [ -a | -b ] Which of the following statements is true regarding this entry?（）A Either the -a or flag -b may be used, but not both.B If the flag -a is used then the flag -b also must be used.C One of the -a or -b flags must be used, but not both at the same time.D Both the flags may be used together, but neither are mandatory.” 相关考题
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The man page for command shows the following syntax: The man page for command shows the following syntax: command [ －a | －b ] Which of the following statements is true regarding this entry?()
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