【单选题】以下程序的运行结果是() for i in range(3): print(‘你好:’,i)
【简答题】Q23 What is the joint probability of A and B?
【单选题】—What did he say just now? —He wondered___________________.
D.
whether he could join us or not
【单选题】Q23: What does the Latin “cor” mean?
【单选题】What is the purpose of a semi-join?
A.
Increase the speed of the join for trade-off of increased data transmission cost.
B.
Increase the efficiency of sending data across multiple machines.
C.
Another name for join: an operation to combine two tables by column.
【单选题】以下程序的运行结果是: s='HBJT' for i in s: if i=='J': continue print(i)
【单选题】以下程序运行后的输出结果是( )。
C.
t a=1,b=0; if(!a) b++; else b+=3; printf(“%d\n”,b); return 0;
【单选题】肝性脑病应用左旋多巴时不宜合用的维生素是( )