在一次科学探测活动中，探测人员发现一目标在如图所示的阴影区域内，则目标的坐标可能是（　　）

如图，在△ABC中，∠C＝90°，AD平分∠CAB，BC＝8cm，BD＝5cm，那么点D到直线AB的距离是    (        )

 大樱桃酸甜可口，这些酸甜物质主要存在于细胞什么结构（　　）

    How often do you exercise? I'm sorry to say that I exercise 1 than once a week. I know it is not a 2 way of living for a 3 boy. 4,I don't have much time to exercise. I love sports I used to be (过去是) a member of the swimming team and the 5 team in school. I 6 every Monday and Thursday, and I played volleyball every day after school. But I 7 the teams in September last year, because I had to spend much more time on my study. Now I have 8 time to-do sports or have fun. I hardly watch TV or play computer games, 9 .

    My father says 10 is very important. I hope I have time to exercise with him.