Mr. Chen is very _________ every day. He has no time to help his daughter with her homework.
A:tired
B:relaxing
C:busy
D:free
学校开展为贫困地区捐书活动,以下是5名同学捐书的册数:2,2,3,4,9. 则这组数据的中位数和众数分别是( )
关于太阳活动的正确叙述是( )
“建设美丽中国”这是新当选为党的******同志所提出的一个新目标,也引起了大家的关注和热议。据此回答小题。