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【单选题】
设有关系:教师 ( 编号,姓名,生日,职称 ) ,从教师关系中查询所有教授的信息应使用( )关系运算。A.
选择
B.
更名
C.
连接
D.
笛卡儿积
拍照语音搜题，微信中搜索"皮皮学"使用
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【简答题】past neglect boon escalat e recuperative rattle off boomerang sear 1. Maria, playing an evening match, _____________ a 6-0 win over the Belgian.
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【简答题】past neglect boon escalat e recuperative rattle off boomerang sear 3. Her scheme _____________ on her so she lost all her money.
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【简答题】past neglect boon escalat e recuperative rattle off boomerang sear 4. The organization aims at helping the aged widowers who live in a state of ____________.
【简答题】past neglect boon escalat e recuperative rattle off boomerang sear 7. The cost of living has been _____________ since the new economic law was introduced.
【单选题】下面某生演讲稿中的一句话,语病类型判断正确的一组是( ) 通过观看央视节目《经典咏流传》,让我更加热爱祖国的优秀传统文化。
A.
成分残缺
B.
句式杂糅
C.
搭配不当
D.
不合逻辑
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