有些工作或流程由几个基本操作组成，每个操作下面有若干小步骤或工作项。
A.Some jobs or processes consist of several basic operations, with a number of minor steps or work items under each. B.Some basic operations with a few small steps or work items are included in some work or processes. C.Some jobs or processes constitute a few basic operations, with several minor steps or work items under each.正确答案A
