The boy is too young to go to school.  [ ]

A. too old to go to school

B. old enough to go to school

C. such young that he can't go to school

D. so young that he can't go to school

运输枢纽的功能具体表现为( )。

A．是同一种运输方式多条干线相互衔接，进行客货中转及对运输工具进行技术作业和调度的重要基地

B．提供标准化的运输线路和服务

C．是大宗客货流中转、换乘、换装与集散的地点

D．提供满足多样化需求的运输服务与增值服务

E．可促进城市的发展