题目内容

二进制移频键控可以采用()和()调制。

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An engineer plans to configure summary routes with the ip summary - address eigrp asn prefix mask command. Which of the following, when added to such a command, would create a summary that includes all four of the following subnets: 10.1.100.0/25, 10.1.101.96/27, 10.1.101.224/28, and 10.1.100.128.25?()

A. 10.1.0.0 255.255.192.0
B. 10.1.64.0 255.255.192.0
C. 10.1.100.0 255.255.255.0
D. 10.1.98.0 255.255.252.0

哪些类型的灭火器应报废?

煤焦车的轨道的端部都有安全挡。

A. 正确
B. 错误

典型的超巴氏杀菌条件,温度为(),时间是2~4s。

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