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【单选题】
如果你所在单位有 210.45.160.0/24 段 C 类地址,现该单位所有主机需要划分成 4 个网段,那么每个网段的子网掩码设计为多少?A.
/25
B.
/26
C.
/27
D.
/28
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【单选题】听力原文：M: Has Cynthia been working hard on her term paper? W: Day in and day out. Q: What does the woman say about Cynthia? (13)
A.
She's working all the time.
B.
She's out all the time.
C.
She works every other day.
D.
She studies twice a day.
【单选题】听力原文：M: Are you going to leave school at the end of the term? W: Yes, I am. M: What are you going to do? W: I'm going to be a clerk. M: What does a clerk do? W: She works in an office. She writes lett...
A.
Writes letters.
B.
Writes reports.
C.
Types.
D.
All of the above.
【简答题】警冲标设在两会合线路线间距离为（ ）的中间A. 4m
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