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【判断题】
在关系数据模型中,只有一种结构——关系。不论是实体还是实体之间的联系都是用关系来表达的。A.
正确
B.
错误
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举一反三
【单选题】The dialect which is influenced by social status is
A.
regional dialect.
B.
idiolect
C.
sociolect.
D.
ethnic dialect.
【简答题】一般情况下,模板可分为两部分,一部分是在基于模板创建的文档中不能编辑的区域,称为( );另外一部分是在基于模板创建的文档中可以编辑的区域,称为( )。
【单选题】Standard dialect is ______________.
A.
designated as the official or national language of a country
B.
a dialect a child acquires naturally like his regional dialect
C.
used by people who speak different languages for restricted purpose
D.
used by people who belong to the higher social status
【单选题】Standard dialect is _____.
A.
a dialect a child acquires naturally like his regional dialect.
B.
designated as the official or national language of a country.
C.
used by people who speak different languages for restricted purpose.
D.
used by people who belong to higher social status.
【判断题】Nanjing dialect (Nankinese) in the history of the long-term is China's official language.
A.
正确
B.
错误
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