【C17】A．phenomenonB．processC．modeD．pattern

【C13】A．practiceB．processC．procedureD．program

【C6】A．phenomenonB．thingC．factD．event

A．wayB．processC．procedureD．action

______ is the poetry that has either an irregular pattern or no metrical pattern.A．Free ve

The actual______by which coal is extracted is well worth seeing.A．conductB．processC．proced

61._________A. stageB. processC. periodD. applica