A:
B:
C:
D:
从1,2,3,4,5,6,7,8,9中不放回地依次取2个数,事件A=“第一次取到的是奇数”,B=“第二次取到的是奇数”,则P(B|A)=( )
His grandfather lives in a small .There are only 200 people in it.
维护国家的尊严是公民肩负的重任。下列符合这一观点的名言警句是( )