大数据要求企业设置的岗位是（）
A.首席信息官和首席工程师
B.首席信息官和首席数据官
C.首席分析师和首席工程师
D.首席分析师和首席数据官
参考答案：B
Why is winter your favourite season? _________ I like to skate.[ ]
A. But
B. So
C. Because
It was not until I received the text message that I knew___a serious disease he had been suffering from,and
began to worry about___he could pull through this Christmas.[ ]
A.what; whether
B.how ; if
C. that; that
D .which ; how
