their differences have_____ out of a debate about how best to recognize the compe
问题描述：
their differences have_____ out of a debate about how best to recognize the compe
their differences have____ out of a debate about how best to recognize the competition.
A risen B arisen C raised D existed
答
B arise out of是固定搭配,源自于……,起于…….
本句字面意思是：他们的不同起于一场关于如何更好的认识竞争的辩论