单项选择题

与快速以太网 Fast Ethernet相同之处是：千兆位以太Gigabit Ethernet同样保留着传统的10 Mbps Ethernet的基本特征，而且把每个比特的发送时间降低为

A． 100ns
B． 10 ns
C． 0.1ns
D． 1ns
<上一题 目录 下一题>
热门 试题

单项选择题
Different quality factors of software can be reflected upon user’s different points of view,through product running,product modification and product transformation. Of the following properties,which one is connected with product running Ⅰ．correctness Ⅱ．robustness Ⅲ．re-use
A． Ⅰonly
B． Ⅱ only
C． Ⅰ+Ⅱ
D． all of above
单项选择题
The construct cobegin Statement1; Statement2; coend means Statement1 and Statement2 are to be executed in parallel. The only two atomic actions in this construct are loading thevalue of a variable and storing into a variable.For the program segment x:=0； y:=O； cobegin begin x:=l; y:=y+x; end; begin y:=2; x:=x+3; end coend Which of the following indicate(s) possible values for the variables when the segment finishes execution Ⅰ．x=1,y=2 Ⅱ．x=1,y=3 Ⅲ．x=4,y=6
A． Ⅰ
B． Ⅰ and Ⅱ
C． Ⅰ and Ⅲ
D． Ⅱand Ⅲ
相关试题