1. [单选题]网络122.21.136.0/24和122.21.143.0/24经过路由汇聚，得到的网络地址是(50)。
A. 122.21.136.0/22
B. 122.21.136.0/21
C. 122.21.143.0/22
D. 122.21.128.0/24
2. [单选题]显示结果为如下超链接的 HTML语句是()。
A. test
B. 翻盖手机
C. 翻盖手机
D. test
3. [单选题]Serialization delay and(71)delay are the two components of network delay that are improved by increasing bandwidth. Serialization delay, i.e. the amount of time it takes to put the(72)on the wire, and queuing delay(depth of the queue)are improved by increasing the(73)from a 128Kbps circuit to a THowever, three other components of delay, routing/switching deiay, distance delay, and protocol delay are components that can not be positively affected by an(74)in bandwidth. If the circuits are not over-utilized, then increasing the bandwidth to improve the(75)of the application will only result in an increased bandwidth with no positive effects on performance.
A. buffering
B. queuing
C. receiving
D. timing
4. [单选题]●寄存器间接寻址是指在(7)中存取操作数(fetching operands)。(7)
A. 通用寄存器(currency register)
B. 程序计数器
C. 主存单元
D. 外存储器
5. [单选题]在Excel中，若单元格C1中的公式为=A1+B2，将其复制到单元格C5，则C5中的公式是(55)。
A. =A1+B2
B. =A5+B6
C. =A5+B2
D. =A1+B6
