【单选题】在采用放大或者缩小比例时,标注的尺寸应该是 ,并在标题栏的“比例”栏应填写相应的比例。
【简答题】In the mid-1950s, I was a somewhat bored early-adolescent male student who believed that doing any more than necessary was wasted effort . One day, this approach threw me into embarrassment In Mrs. To...
【简答题】已执行: >student<-data.frame( height=c(180,175,178,168,165), +gender=c("male","male","male","femal","femal")) 计算student中不同性别的同学的平均身高,使用with()函数和aggregate()函数,可写做: with(student,{aggregate(__________,_____...
【简答题】阅读理解。 A typical Chinese Internet user is a young male who prefers instant messaging to e-mail, seldom makes online purchases and favors news, music and s sites. According to a study, about two-thi...
【简答题】已执行: >studentattach(student) 计算student中不同性别的同学的平均身高,使用tapply()函数,可写做: tapply(_________,___________,__________)
【简答题】已执行: >student<-data.frame( height=c(180,175,178,168,165), +gender=c("male","male","male","femal","femal")) 计算student中不同性别的同学的平均身高,使用aggregate()函数,可写做: aggregate(_______,_________,_________) (注释)
【简答题】There were______male actors who appeared with Roberts are mentioned in this passage.
【简答题】已执行: >student<-data.frame( height=c(180,175,178,168,165), +gender=c("male","male","male","femal","femal")) 计算student中不同性别的同学的平均身高,使用tapply()函数,可写做: tapply(____________,______________,_____________)
【单选题】第一次提出科学发展观的党的文件是2003年10月党的十六届三中全会通过的( )
A.
《中共中央关于建立社会主义市场经济体制若干问题的决定》
B.
《中共中央关于完善社会主义市场经济体制若干问题的决定》
【判断题】2003年10月党的十六届三中全会通过的《中共中央关于完善社会主义市场经济体制若干问题的决议》,是第一次提出科学发展观的党的文件。()