执行代码m[-c("poor","excellent","good","poor") ] patient[-factor(m,order=TRUE,levels=c("poor","good","excellent"))) ] patient后,patient的因子水平下列说法正确的是（ ） A: poor good excellent B: poor excellent good C: excellent good poor D: 以上都不对

执行代码m[-c("poor","excellent","good","poor") ] patient[-factor(m) ] patient后,patient的因子水平下列说法正确的是（ ） A: poor good excellent B: poor excellent good poor C: excellent good poor D: 以上都不对

字符串s=“python is an excellent language”，运行s.split()后结果是哪个？ A: python is an excellent language B: ‘python’ ‘is’ ‘an’ ‘excellent’ ‘language’ C: [‘python’,‘is’,‘an’, ‘excellent’, ‘language’] D: [‘python’;‘is’;‘an’; ‘excellent’; ‘language’]

excellent

The harder you work, the ______ you would be. A: more excellent B: most excellent

excellent opportunities for ______

我是一个优秀的篮球运动员。 A: I am an excellent basketball player. B: I am an excellent badminton player. C: I am an excellent football player.

Charles was an excellent pianist.

Themention“Excellent”canbegiventoaPEPassessmentwhen…

______________________ points to excellent leadership.