下面关于Series和DataFrame的理解,哪个是不正确的?()
A.Series和DataFrame之间不能进行运算
B.DataFrame表示带索引的二维数据
C.Series表示带索引的一维数据
D.可以像对待单一数据一样对待Series和DataFrame对象
A.Series和DataFrame之间不能进行运算
B.DataFrame表示带索引的二维数据
C.Series表示带索引的一维数据
D.可以像对待单一数据一样对待Series和DataFrame对象
第5题
l In C language, a (2) is a series of charactrs enclosed in double quotes.
A. matrixB. stringC. programD. stream
第6题
high speed.For those who earn less but are eager to own a decent and comfortable place of their own in a big city, the high housing price is a heavy burden that they cannot afford.For this reason, the government has taken a series of measures to prevent the housing price from rising too fast, including raising interest rates(利率)and increasing taxes on real estate(房产税)etc.Presently, these measures have achieved initial effects in some cities.
第11题
下面关于理财方案进行修改的程序正确的是()。 ①客户声明;②会谈记录;③情况说明;④修订执行计划;⑤方案确认
A.①③③④⑤
B.③④①②⑤
C.②①⑤③④
D.③②①⑤④