【单选题】【消耗次数：1】
系统设计阶段的主要任务是根据系统的逻辑模型建立物理模型，以便说明（）。
①
系统开发的可行性
②
系统是什么
③
系统怎么干
④
系统如何实施
参考答案：
复制
纠错
相关题目
【简答题】
系统分析阶段得到的新系统逻辑模型，解决的是新系统“做什么”的问题；而系统设计阶段得到的新系统[填空1]模型，回答的是“如何做”的问题。
随机题目
【单选题】
______ bad cold she spent the entire day in bed.
①
As if
②
Even though
③
In addition
④
Due to
【单选题】
Modesty helps one to go forward, ______ conceit makes one lag behind.
①
whenever
②
only if
③
whereas
④
consequently
【单选题】
A pen pal provides good motivation for your writing because he or she ____.
①
lives far away from you
②
knows China a lot so that you can have a lot to talk about
③
also keeps a diary
④
may inform you of many interesting things in his or her culture
【单选题】
As for words which do not often occur in everyday situation, you just need to be able to ____.
①
recognize them
②
nod at them
③
concentrate much on them
④
practice using them constantly
【单选题】
According to the text, which of the following is NOT one of the possible activities for you to practice speaking English at school?
①
To talk to native speakers on campus.
②
To speak English to the waitress in English as you pay for a meal in a restaurant.
③
To rehearse aloud by yourself.
④
To talk with your classmates in English.
【单选题】
The place did not seem to be popular, for it was completely deserted, and in any case _____ to traffic.
①
inaccessible
②
inadequate
③
insignificant
④
incompatible
【单选题】
The head of the museum was _____and let us actually examine the ancient manuscripts.
①
promising
②
agreeing
③
pleasing
④
obliging
【单选题】
Lucy，who did not even go to grade school, had no ________of a job at the time.
①
interview
②
pressure
③
prospect
④
application
【单选题】
The lecture provided ____ insight into foreign affairs.
①
penetrating
②
pendular
③
passive
④
penal
【单选题】
Linda is 35 years o1d and, after two close relationships, the prospect of staying single__________ her.
①
impresses
②
depresses
③
threatens
④
stuns