In 1988, Tsinghua University set up its first "Challenge Cup" competition.
A: 正确
B: 错误
A: 正确
B: 错误
举一反三
- In 1988, Tsinghua University set up its first "Challenge Cup" competition.
- 在Student表中，将学生姓名为“王蒙”的学生改名为“王金山”，正确的SQL语句是___________。 A: UPDATE SET 姓名="王金山" IF 姓名="王蒙" B: UPDATE Student SET 姓名="王蒙"WHERE 姓名="王金山" C: UPDATE Student SET 姓名="王金山" WHERE 姓名="王蒙" D: UPDATE Student SET 姓名="王蒙" IF 姓名="王金山"
- Select the statement that distinguishes monopolistic competition from perfect competition. A: No barriers to entry/exist in monopolistic competition. B: A firm in monopolistic competition can set its own price and output. C: A firm in monopolistic competition makes zero economic profit in the long run. D: Close substitutes are available in monopolistic competition.
- Which facts show the American spirit of competition? A: People who like to compete are appreciated. B: There are a lot of expressions of "doing" rather than "being"in their language. C: Americans believe that "friendship first, compitition second". D: Americans learn competition skills since young.
- 设“学生”表中有 “学号”、“生源”等字段，将学号为“S01002”的学生的生源改为“福建”，正确的SQL语句是（ ）。 A: UPDATE 学号="S01002" SET 生源="福建" B: UPDATE 生源="福建" FROM 学生 C: UPDATE 学生 SET 生源="福建" WHERE 学号="S01002" D: UPDATE FROM 学生 WHERE 学号="S01002" SET 生源="福建"