请问honeybee’sstinger和yellowjacket’sstinger哪个是主语?这两个句子哪个是从句?
Whereasthehoneybee’sstingerisheavilybarbedandcannotberetractedfromtheskin,theyellowjacket’sstingeriscomparativelysmooth,andcanthereforebepulledoutandusedagain.