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【简答题】
阅读以下说明和流程图，回答问题1和问题2。 【说明】 某供销系统接受顾客的订货单，当库存中某配件的数量小于订购量或库存量低于一定数量时，向供应商发出采购单；当某配件的库存量大于或等于订购量时，或者收到供应商的送货单并更新了库存后，向顾客发出提货单。该系统还可随时向总经理提供销售和库存情况表。该供销系统的分层数据流图中部分数据流和文件的组成如下。 文件： 配件库存=配件号+配件名+规格+数量+允许的最低库存量 数据流： 订货单=配件号+配件名+规格+数量+顾客名+地址 提货单=订货单+金额 采购单=配件号+配件名+规格+数量+供应商名+地址 送货单=配件号+配件名+规格+数量+金额 假定顶层图(见图1-22)是正确的，“供应商”文件已由其他系统生成。 指出哪中的哪些文件可不必画出。
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举一反三
【单选题】—I hear Ted got hurt badly in the car accident yesterday. — It's true. His careless driving was the of the accident. [ ]
A.
reason
B.
cause
C.
excuse
D.
answer
【单选题】The writer described Hamel as the best pilot but criticized his assistant for his carelessness in the flight.
A.
True
B.
False
C.
Not mentioned
【单选题】The deadly accident _____ his careless driving.
A.
resulted in
B.
resulted of
C.
resulted from
D.
led to
【简答题】A. from French for "wrong," a civil wrong or wrongful act, whether intentional or accidental, from which injury occurs to another. B. failure to exercise the care toward others which a reasonable or p...
【单选题】The only means to achieve success ___ to appeal to arms.
A.
is
B.
are
C.
were
D.
have
【单选题】Mr. Johnson ______ his boss ______ his careless mistake.
A.
apologized; about
B.
apologized to; about
C.
apologized to; for
D.
apologized; for
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