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【单选题】
需求分析过程应该建立3种模型,它们分别是数据模型、功能模型、行为模型。以下图形中,()属于功能模型。A.
实体-联系图（ERD）
B.
数据流图（DFD）
C.
状态转换图（STD）
D.
鱼骨图
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举一反三
【单选题】__________ that has caused the trouble and ________ that we should scold(批评).
A.
It was him; it was he
B.
It is he; it is him
C.
This was he; that is him
D.
That is him; that was he
【单选题】The war and the suffering ____ caused affected him very greatly.
A.
that
B.
it
C.
which
D.
what
【单选题】电子商务的实施，可能有多种驱动力，但真正推动企业电子商务发展的是_______。
A.
主管部门的驱动
B.
信息化浪潮的冲击
C.
外部环境的影响
D.
企业业务和市场拓展需要
【单选题】-- What caused him to quit the job? -- ______ behind the counter ail day, facing strange angry faces.
A.
Stand
B.
Standing
C.
He had to stand
D.
That to stand
【简答题】阅读理解 When you turn on the radio, you hear an advertisement. When you watch television, you hear and see an advertisement. If you turn the pages of a newspaper or magazine, again you find an advertisem...
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【单选题】The war and the suffering ____ caused affected him very greatly.
A.
that
B.
it
C.
which
D.
what
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