A:2个
B:3个
C:4个
D:5个
如图,在坐标系中放置一菱形OABC,已知∠ABC=60°,OA=1.先将菱形OABC沿x轴的正方向无滑动翻转,每次翻转60°,连续翻转2015次,点B的落点依次为B1,B2,B3,…,则B2015的坐标为____ .
—Yes. It was ______ exciting that I would never forget it.
There are twenty-five children ____the class. ( )