唐朝诗人皮日休曾说：“大运河北通涿郡之渔商，南运江都之转输，其为利也博哉。”由此可看出隋朝开凿大运河的意义是:( )

A．巩固隋朝的统治

B．有利于中外经济交流

C．促进南北经济交流

D．结束了分裂割据，实现了大统一

Some parents are just too protective. They want to ____ their kids from every kind of danger, real or

imagined.[ ]

A. spot

B. dismiss

C. shelter

D. distinguish