The five rings on the Olympic flag the five continents that are joined together in the Olympic Games.
A. belong to
B. stand for
C. take apart
D. pack up
网友回答
A. belong to
(答案→)B. stand for
C. take apart
D. pack up
解析：A. belong to属于，B. stand for代表，C. take apart拆开，D. pack up收拾行李，句意：奥运会旗上的五环代表在奥运会上联合起来的五大洲。根据句意选B。