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【单选题】
The author's friend sat down at the side of the road because______.A.
he was too tired to walk any further
B.
he had had an accident and hurt his leg
C.
he thought the lorry driver would see him clearly there
D.
he wanted to give the lorry driver a reason to stop
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反馈参考答案：
举一反三
【简答题】在关系数据库的规范理论中,在执行“分解”时,必须遵守规范化原则:保持原有的依赖关系和 。
【简答题】在关系数据库的规范化理论中,在执行“分解”时,必须遵守的规范化规则:保持原有的依赖关系和 。
【单选题】When hostages and hostage takers were trapped by siege , some surprising things unfold.
A.
catch
B.
encirclement
C.
occupation
D.
invasion
【简答题】怎样理解经济学中的成本?
【单选题】When hostages and hostage takers were trapped by siege , some surprising things unfold.
A.
invasion
B.
catch
C.
occupation
D.
encirclement
【简答题】五百分之一围属于( )比例尺。
【单选题】统计表的基本结构包括
A.
统计调查表、整理汇总表和统计分析表
B.
大标题、小标题、线条和数字
C.
大标题、小标题、线条、数字和备注
D.
标题、纵横标目、线条和数字
E.
标题、纵横标目、线条、数字和备注
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