命令: >>> s = ‘I have a dog , I have a cat’ >>> re.findall( r’I have a (?:dog|cat)’ , s ) 的执行结果是: A. ["I have a dog","cat"] B. ('I have a dog', 'cat') C. ('I have a dog', 'I have a cat') D. ["I have a dog","I have a cat"]
【简答题】There comes a point when the quality of life can no longer be improved because of the high population density(密度)and the largely unsuccessful attempts to meet its demands.
【简答题】I am a Chinese girl. My 16 Wang Wenbo. I 17 12 years old. 18 first name is Wenbo and my 19 name is Wang. I’m 20 Class Three, Grade Seven. I have 21 ID card. Its 22 is 368899. Miss is my English te...