【单选题】【消耗次数：1】
数据流图的基本符号包括：（ ）。
①
数据流、加工、文件、数据源和终点
②
数据流、处理、加工、数据源和终点
③
数据流、数据流名、加工、处理
④
数据源、加工、文件、外部项
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相关题目
【单选题】
数据流图的基本符号包括：（ ）。
①
数据流、加工、文件、数据源和终点
②
数据流、处理、加工、数据源和终点
③
数据流、数据流名、加工、处理
④
数据源、加工、文件、外部项
【简答题】
数据流图中一般使用[填空]符号表示“数据源点”
【简答题】
数据流图的四种基本成分为：加工、源点或终点、[填空]和[填空]。
【单选题】
数据流图用于抽象描述一个软件的逻辑模型,数据流图由一些特定的图符构成.下列图符名标识的图符不属于数据流图合法图符的是( )。
①
控制流
②
加工
③
数据存储
④
源点和终点
随机题目
【单选题】
As National Day is round the corner, Shanghai is ______ a festive atmosphere.
①
looked on
②
involved in
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bathed in
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surrounded with
【单选题】
I followed her _______ but I still couldnt work out how to use the sewing machine.
①
description
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introduction
③
instructions
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comments
【单选题】
Ididntknowanythingaboutanyofthebookssomychoicewasquite______.
①
arbitrary
②
obvious
③
evident
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fortunate
【单选题】
—Youshouldhavethankedherbeforesheleft.—Imeant_______,butwhenIwasleavingIcouldntfindheranywhere.
①
to do
②
to
③
doing
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doing so
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Im looking forward as much to her return as she herself to ______ me.
①
have seen
②
seeing
③
meet
④
be met
【单选题】
Doctors have said that as many as 50% of patients dont take medicine ______.
①
like directed
②
to be directed
③
as directed
④
so that directed
【单选题】
—Are you a teacher?—No, but I ________. I worked in a middle school for three years.
①
am
②
will
③
do
④
was
【单选题】
IfyougotoXian,youllfindtheplacestheremoremagnificentthancommonly______.
①
supposing
②
supposed
③
to suppose
④
suppose
【单选题】
______forthefreeticket,Iwouldnothavegonetothefilmssooften.
①
If it is not
②
Were it not
③
Had it not been
④
If there were to
【单选题】
Who can you turn to in time of danger, if not _______ ?
①
ourselves
②
ours
③
we
④
us