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 of 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.