第1题
请在下面空格处填写答案。
>>> from pandas import Series, DataFrame
>>> data = {'language': ['Java', 'PHP', 'Python', 'R', 'C#'],'year': [ 1995 , 1995 , 1991 ,1993, 2000]}
>>> frame. = DataFrame(data) >>> frame['IDE'] = Series(['Intellij', 'Notepad', 'IPython', 'R studio', 'VS'])
>>> 'VS' in frame['IDE']
_____
>>> frame['year'][2]
______
第2题
A、129,400
B、125,000
C、120,600
D、128,400
第3题
Brian: OK.(1)In other words, if you buy shares of stock in a business, you become a partial owner of the business.
Alicia: How can investors make money?
Brian: (2)if a person invests in a company that does very well.
Alicia: It's possible for the investors to get a complete loss, isn't it?
Brian: Everyone wants the stock market to go up, but sometimes, (3)This is usually true for all stocks.
A.The price of each share will go up.
B.even when a company does well the stock may go down.
C.Shares represent a partial ownership of the company.
D.There is a listed company behind every stock
第4题
A.段DATA一定为数据段
B.存放段DATA的内存首地址正好是16的整数倍
C.段DATA的变量正好占用16的整数倍
D.存放段DATA的内存首地址正好是256的整数倍
第6题
A.success、fail、timeout、complete
B.success、fail、data、complete
C.success、fail、timeout、data
D.success、fail、url、data
第8题
A.Translated source destination addresses
B.Inverse address resolution
C.Source and destination port number
D.Source and destination addresses and application data