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【简答题】
What are the six types of mobile computers ?
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皮皮学刷刷变学霸
举一反三
【简答题】几何印纹陶,可以分为( )和( )两种。
【单选题】The change in smoking habits ______ a change in the incidence of lung cancer. The more people smoke, the more chances of occurrence for lung cancer.
A.
parallels
B.
witnesses
C.
labels
【多选题】下列选项中哪几个属于关系模型的特点（）。
A.
每一列不可再分
B.
同一个关系中不能出现相同的属性名
C.
关系中不允许有完全相同的元组
D.
关系中任意交换两行的位置不影响数据的实际含义
E.
关系中不允许任意交换两列的位置
【单选题】The change in smoking habits ______ a change in the incidence of lung cancer. The more people smoke, the more chances of occurrence for lung cancer.
A.
labels
B.
parallels
C.
rebels
D.
parcels
【单选题】The change in smoking habits _______ a change in the incidence of lung cancer. The more people smoke, the more chances of occurence for lung cancer.
A.
correspond
B.
distract
C.
boom
D.
parallels
【单选题】The change in smoking habits _______ a change in the incidence of lung cancer. The more people smoke, the more chances of occurrence for lung cancer.
A.
predicts
B.
witnesses
C.
parallel
D.
parallels
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