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【单选题】
在数据库系统设计的概念设计阶段，表示概念结构的常用方法和描述工具是（ ）。A.
层次分析法和层次结构图
B.
数据流程分析法和数据流程图
C.
结构分析和模块结构图
D.
实体联系法和实体联系图
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【简答题】任务型阅读。 One year there was a terrible flood in the countryside. For a week it rained every day. The river rose and burst its banks (冲垮河岸). (A) The water flooded the whole countryside. Most of the peopl...
【简答题】阅读理解。 A new supermarket put on a notice inside the entrance. It said, 'Remember, once a week, one of our customers (顾客) gets free goods (things that cost nothing). This may be your lucky day!' All the...
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【单选题】关于我国政策性银行的说法,错误的是( )。
A.
专门承担政策性金融业务
B.
与商业银行竞争
C.
不以营利为目标
D.
具有特定的资金来源,主要依靠发行金融债或向中央银行举债运行
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【单选题】结核球与周围型肺癌鉴别诊断的关键在于前者
A.
边缘较光整
B.
干酪样厚壁空洞
C.
病灶内呈斑点状钙化
D.
直径一般不超过 75px
E.
卫星病灶及纤维条索影 ( 引流支气管影 )
【单选题】结核球与周围型肺癌鉴别诊断的关键在于前者
A.
边缘较光整
B.
干酪样厚壁空洞
C.
病灶内呈斑点状钙化
D.
病灶内呈斑点状钙化 卫星病灶及纤维条索影 ( 引流支气管影 )
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