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【简答题】
●Ravi, like many project (71) ,had studied the waterfall model of software development as the primary software life-cycle (72) ．He was all set to use it for an upcoming project, his first assignment． However, Ravi found that the waterfall model could not be used because the customer wanted the software delivered in stages, something that implied that the system had to be delivered and built in (73) and not as (74) ． The situation in many other projects is not very different． The real world rarely presents a problem in which a standard process, or the process used in a previous project, is the best choice．To be the most suitable, an existing process must be (75) to the new problem．A development process, even after tailoring, generally cannot handle change requests． To accommodate change requests without losing control of the project, you must supplement the development process with a requirement change management process． (71) A．customers B．managers C．users D．administrators (72) A．activity B．procedure C．process D．progress (73) A．parts B．modules C．software D．a whole (74) A．parts B．modules C．software D．a whole (75) A．modified B．used C．suited D．tailored
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【单选题】下列程序段中“hello"的输出次数是: for (var i=0;i<=2;i++) for(var j=1;j<=3;j=j+2) document.write("hello"+" ");
A.
2
B.
3
C.
5
D.
6
【单选题】为了测定液体的表面张力系数,与称量自毛细管脱离的液滴重量,并测量在脱离的瞬间液滴颈的直径d,得知318,滴液体是5.0克重,d=0.7毫米,则此液体的表面张力系数α为
A.
70.1×10-3牛/米；
B.
73×10-2牛/米；
C.
50.5×10-3牛/米；
D.
50×10-2牛/米。
【单选题】为了测定液体的表面张力系数，与称量自毛细客脱离的液滴重量，并测量在脱离的瞬间液滴颈的直径d，得知318，滴液体是5.0克重，d=0.7毫米，则此液体的表面张力系数α为（）
A.
70.1×10 -3 牛/米；
B.
73×10 -2 牛/米；
C.
50.5×10 -3 牛/米；
D.
50×10 -2 牛/米。
【单选题】若主机之间没有主从关系,网络中的多个用户可以共享计算机网络中的软、硬件资源,则这种计算机网络属于( )
A.
国际标准化的计算机网络
B.
多个计算机互连的通信系统
C.
以单机为中心的通信系统
D.
基于C/S结构的通信系统
【单选题】下列程序段中”hello"的输出次数是: for (var i=0;i<=2;i++) for(var j=1;j<=3;j++) document.write("hello"+" ");
A.
3
B.
6
C.
9
D.
5
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