题干
根尖起保护作用的部位和生长最快的部位分别是（ ）
A：成熟区、伸长区
B：成熟区、分生区
C：伸长区、分生区
D：根冠、伸长区
答案(点此获取答案解析）
D
at 6:30 in the morning. I 
at home. Then I 
at 7:10. I
at 7:30. I 
at 11:45. In the afternoon, we 
class. After school, I 
with my friends. In the evening, I 
or 
. I
at 9:00. This is my day.