若有定义s = 'Python is beautiful!' 则下列可以输出“python”的语句是___。() A: print(s[1:-14].lower()) B: print(s[0:6].lower) C: print(s[0:6]) D: print(s[-21:-14].lower())

s="Python is cool"，可以输出"python"的是 A: print(s[0:7]) B: print(s[:7].lower()) C: print(s[:-8].lower()) D: print(s[-14:-8])

s=’Python is beautiful! ’， 可以输出“python”的是： A: print(s[0:7]) B: print(s[0:7].lower()) C: print(s[-21:-14].lower) D: print(s[:-14])

给出s='Python is beautiful!',可以输出“python”的是 A: print(s[:–14]) B: : print(s[0:6].lower()) C: print(s[0:6]) D: print(s[–21: –14].lower)

给出如下代码‪‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪：‫s='Pythonisbeautiful!'可以输出“python”的是‪‪‪‪‪‪‫‪‪‪‪‪‫‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪‪()。 A: print(s[0:6].lower()) B: print(s[0:6]) C: print(s[:–14]) D: print(s[–21:–14].lower)

给出s = 'Python is beautiful!' 下列选项中可以输出“python”的是 A: print(s[0:6]) B: print(s[0:6].lower()) C: print(s[–21: –14].lower) D: print(s[:–14])

If a country’s saving rate declined, then other things the<br/>same, in the long run it would have () A: lower<br/>productivity, but not lower real GDP per person. B: lower<br/>productivity and lower real GDP per person. C: lower<br/>real GDP per person, but not lower productivity D: neither<br/>lower productivity nor lower real GDP per person.

‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬给出如下代码‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬<br/>s<br/>= 'Python is beautiful!'<br/>可以输出“python”的是 A: print(s[0:6]) B: print(s[0:6].lower()) C: print(s[–21:<br/>–14].lower) D: print(s[:–14])

Which of the following refers to the retention of the Sun's warmth in the Earth's lower atmosphere by greenhouse gases?

America's population growth rate is lower than China's.( )