()表示数字总长度10位,其中小数点后保留2位有效数字。 A: numeric(8,2) B: numeric(10,2) C: numeric(12,2) D: numeric (2,10)
()表示数字总长度10位,其中小数点后保留2位有效数字。 A: numeric(8,2) B: numeric(10,2) C: numeric(12,2) D: numeric (2,10)
Arff文件中包括()标记。
Arff文件中包括()标记。
关于.arff文件,以下叙述正确的是( )。
关于.arff文件,以下叙述正确的是( )。
“图书”表中价格列是一个定点小数,小数点前3位,小数点后保留1位,正确的类型是() A: numeric(3,1) B: numeric(4,1) C: numeric(5,1) D: float
“图书”表中价格列是一个定点小数,小数点前3位,小数点后保留1位,正确的类型是() A: numeric(3,1) B: numeric(4,1) C: numeric(5,1) D: float
( )是Weka专用的文件格式。 A: ARFF B: TXT C: CSV D: ACCDB
( )是Weka专用的文件格式。 A: ARFF B: TXT C: CSV D: ACCDB
A weather man probably is a man who_________. A: reports weather B: can see weather C: can change weather D: is made of weather
A weather man probably is a man who_________. A: reports weather B: can see weather C: can change weather D: is made of weather
在一般项目体检表generalitem(cno char(6),gtjrq date,gheight numeric(4,1),gweight numeric(4,1),gBMI numeric(3,1),gblood char(15),gsummary text,dno char(4))中,分组统计2018年上半年各个医生体检的人数,
在一般项目体检表generalitem(cno char(6),gtjrq date,gheight numeric(4,1),gweight numeric(4,1),gBMI numeric(3,1),gblood char(15),gsummary text,dno char(4))中,分组统计2018年上半年各个医生体检的人数,
How is the weather now A: [A] The weather is bad now. B: The weather is good now. C: The weather is changing now.
How is the weather now A: [A] The weather is bad now. B: The weather is good now. C: The weather is changing now.
将天气数据集(weather.numeric.arff)的第二个属性“tempe...buteIndices”应设置为:()。
将天气数据集(weather.numeric.arff)的第二个属性“tempe...buteIndices”应设置为:()。
________, they will go on an outing to the beach tomorrow. A: Weather permit B: Weather permitting C: Weather is permitting D: Weather permits
________, they will go on an outing to the beach tomorrow. A: Weather permit B: Weather permitting C: Weather is permitting D: Weather permits