题干
Owing to a financial disagreement, the cooperation broke down and the two businessmen finally went their ______ ways.
A：commo
B：separate
C：selfish
D：lonely
答案(点此获取答案解析）
B
表示从树突到胞体，再到轴突及末梢(即一个完整的神经元模式）；图乙表示突触的亚显微结构模式图。联系图解回答下列问题：