【单选题】There have been many great【21】. The first great invention was one that is still very important to day--the wheel. This made it easier to carry【22】things and to travel long distances. In the early 1800...
【单选题】创建一个名为 ‘Customers’ 的新表,同时要求新表中包含表 ‘s’ 的所有记录, sql 语句是()。(选择一项)
A.
Select * into customers from s
B.
Select into customers from s
C.
Insert into customers select * from s
D.
Insert customers select * from s
【单选题】1927年(),在的领导下爆发了湘鄂边界秋收。
【判断题】当经营杠杆系数趋近于无穷大时,企业的经营利润率为零。()
【单选题】创建一个名为‘Customers’的新表,同时要求新表中包含表‘s’的所有记录,sql语句是
A.
Select * into customers from s
B.
Select into customers from s
C.
Insert into customers select * from s
D.
Insert customers select * from s