下面符号对象的定义错误的是( )。 A: x=sym(0.5,'r') B: x=sym(‘x’) C: x=sym(0.5,'real') D: x=sym(0.5,’f’)
下面符号对象的定义错误的是( )。 A: x=sym(0.5,'r') B: x=sym(‘x’) C: x=sym(0.5,'real') D: x=sym(0.5,’f’)
在SETEXACTON情况下,结果值为逻辑真的表达式是()。 A: ''数据库系统''=''数据库'' B: ''数据库''=''数据库系统'' C: ''数据库''==''数据库''+space(4) D: ''数据库''=''数据库''+space(4)
在SETEXACTON情况下,结果值为逻辑真的表达式是()。 A: ''数据库系统''=''数据库'' B: ''数据库''=''数据库系统'' C: ''数据库''==''数据库''+space(4) D: ''数据库''=''数据库''+space(4)
智慧职教: 已知有字典dict1={'中国':'北京','美国':'华盛顿','俄罗斯':'莫斯科','日本':'东京'},要输出'美国'所对应的值的正确语句为
智慧职教: 已知有字典dict1={'中国':'北京','美国':'华盛顿','俄罗斯':'莫斯科','日本':'东京'},要输出'美国'所对应的值的正确语句为
下列不正确的转义字符是_______。 A: '' B: '074' C: '' ' D: ''''
下列不正确的转义字符是_______。 A: '' B: '074' C: '' ' D: ''''
【单选题】76. George Orwell, _______ was Eric Arthur, wrote many political novels and essays. A. the real name B. what his real name C. his real name D. whose real name A. the real nam e B. what his real nam C. his real nam D. whose real nam
【单选题】76. George Orwell, _______ was Eric Arthur, wrote many political novels and essays. A. the real name B. what his real name C. his real name D. whose real name A. the real nam e B. what his real nam C. his real nam D. whose real nam
表示职称为副教授同时性别为男的表达式为( )。 A: IN ('副教授','男') B: 职称='副教授' AND 性别='男' C: 职称='副教授' OR 性别='男' D: BETWEEN '副教授' AND '男'
表示职称为副教授同时性别为男的表达式为( )。 A: IN ('副教授','男') B: 职称='副教授' AND 性别='男' C: 职称='副教授' OR 性别='男' D: BETWEEN '副教授' AND '男'
向student表插入一条新记录的正确SQL语句是()。 A: APPENDINTOstudentVALUES('0401','王芳','女',18) B: APPENDstudentVALUES('0401','王芳','女',18) C: INSERTINTOstudentVALUES('0401','王芳','女',18) D: INSERTstudentVALUES('0401','王芳','女',18)
向student表插入一条新记录的正确SQL语句是()。 A: APPENDINTOstudentVALUES('0401','王芳','女',18) B: APPENDstudentVALUES('0401','王芳','女',18) C: INSERTINTOstudentVALUES('0401','王芳','女',18) D: INSERTstudentVALUES('0401','王芳','女',18)
Documentaries are about the real world and real people.
Documentaries are about the real world and real people.
执行下列哪个语句能够得到结果'2001-2-15' A: '-'.join(['2001', '2', '15']) B: '-'.join('2001', '2', '15') C: '-'.join(2001, 2,15) D: '-'.join([2001, 2,15])
执行下列哪个语句能够得到结果'2001-2-15' A: '-'.join(['2001', '2', '15']) B: '-'.join('2001', '2', '15') C: '-'.join(2001, 2,15) D: '-'.join([2001, 2,15])
An increase in the population and hence the supply of labor causes a A: shortage of labor at the original real wage rate and the real wage rate will fall. B: surplus of labor at the original real wage rate and the real wage rate will rise. C: surplus of labor at the original real wage rate and the real wage rate will fall. D: shortage of labor at the original real wage rate and the real wage rate will rise.
An increase in the population and hence the supply of labor causes a A: shortage of labor at the original real wage rate and the real wage rate will fall. B: surplus of labor at the original real wage rate and the real wage rate will rise. C: surplus of labor at the original real wage rate and the real wage rate will fall. D: shortage of labor at the original real wage rate and the real wage rate will rise.