小米同学乘坐一艘游船出海游玩，游船上的雷达扫描探测得到的结果如图所示，每相邻两个圆之间距离是1km（小圆半径是1km），若小艇C相对于游船的位置可表示为（0°，-1.5），请你描述图中另外两个小艇A、B的位置，正确的是（　　）

先通读下面的短文，掌握其大意，然后从A、B、C、D四个选项中选择可以填入空白处的最佳答案。

    Hello，everyone!My name is Tony．Welcome to our school lost and found1．You can always2 some books or other things somewhere in me school because of the some careless(粗心的)students．Some students3 them and send them here．

    Look!There is a nice pen.There's also a black bag4some books in it.Oh,here is Kate's 5on the bag.I think it's6．Look at the pencil case(铅笔盒)．There is a pen and two erasers in it．Under the table there are two7．Some boys like 8basketball after class．The basketballs are theirs,I think．Look at the cute toy dog．I don't know9 it is．

    So everyone，be10your things．

在比例尺为1：50000的地图上量得甲、乙两地的距离为10cm，则甲、乙两地的实际距离是（　　）