【简答题】List the names for the instructors as the format of names followed by the string " teacher' based on the SQL statement for the SQL server software; select name from instructor; note that: all the lett...
【单选题】兴趣对活动的推动所产生的效果的兴趣品质是()。
【简答题】我们知道,十进制小数0.5表示成二进制是0.1,十进制小数0.25表示成二进制是0.01,十进制小数0.75表示成二进制是0.11,那么十进制数小数0.387表示成二进制的结果是(精确到小数点后8位数字)____________
【多选题】Which of the following ideas are mentioned in the passage as elements of the theory of plate tectonics? Click on 2 answers.
A.
Boundaries where two pieces of the Earth's outer shell diverge.
B.
Zones where one tectonic plate moves under another.
C.
The expansion of oceans and other bodies of water.
D.
The existence of a land bridge that connected continents.
【简答题】Find the department names of all instructors, and remove duplicates
【单选题】According to the theory of the firm, which of the following statements describes an oligopoly?
A.
There are no barriers to entry into or exit from the market
B.
There is only one producer in the market
C.
There are four producers exerting considerable influence in the market
D.
There are many producers but they each use product differentiation to distinguish themselves from each other
【多选题】在司法环节中,人机融合已成为潮流,人工智能技术的运用范围不断扩大,机器人超越人类的()能力。
【简答题】List the average salary of all instructors from the instructor relation, then rename the new column of the average salary to avg_salary.