【简答题】Xiang Yu was a Chinese imperial general in the third century BC who took his troops across the Zhang River on a raid into enemy territory.A. Xiang Yu was an ancient Chinese general in the third centur...
【单选题】Who is Li Xiang?
A.
Manager of the Women's Clothing Department
B.
General manager of the department store
C.
An intern at the department store
【单选题】在数字音频信息获取与处理过程中,下述顺序中正确的是( )
A.
A/D 变换、采样、压缩、存储、解压缩、 D/A 变换
B.
采样、压缩、 A/D 变换、存储、解压缩、 D/A 变换
C.
采样、 A/D 变换、压缩、存储、解压缩、 D/A 变换
D.
采样、 D/A 变换、压缩、存储、解压缩、 A/D 变换
【简答题】如果关系模式R是1NF,且每个非主属性()函数依赖于主键,那么称R是第二范式的模式。
【单选题】关于腰椎间盘突出症临床定位诊断描述错误的是
A.
小腿外侧和足内侧感觉异常提示腰4~5椎间盘突出
【判断题】若某关系模式存在传递函数依赖,那么它有可能是第二范式。