现有:classWrenchfpublicstaticvoidmain(String[]args){Wrenchw=newWrench();Wrenchw2=newWrench

现有：classWrenchfpublicstaticvoidmain（String[]args）{Wrenchw=newWrench（）；Wrenchw2=newWrench（）；w2=go（w，w2）；System.out.print（w2==w）；}staticWrenchgo（Wrenchwrl，Wrenchwr2）{Wrenchwr3=wrl；wrl=wr2；wr2=wr3；returnwr3；}结果是什么？（）

A、false

B、true

C、编译失败

D、运行的时候有异常抛出