兔哥哥和兔弟弟一共拔了52个萝卜。其中兔弟弟拔了20个,兔哥哥拔了多少个?
52 - 20=32(个)
— I'm here almost half an hour. How come it _____ you so long?
— Sorry, honey! I had to drive two blocks before I spotted a place to park the car. [ ]
A. takes
B. took
C. has taken
D. had taken
健康教育是一种全民教育,表现在()
A.以疾病为中心
B.以患者为中心
C.以社区为中心
D.以生活方式为中心
E.以健康为中心