listEning 6 "BotAnyClAss"
{$mEDiAurl}

ACCorDing to thE proFEssor, why ArE roots importAnt to plAnts
CliCk on 2 AnswEr ChoiCEs.
A、to ABsorB wAtEr AnD nutriEnts
B、to tAkE in Enough oxygEn
C、to suspEnD thE plAnts in thE solution
D、to FiltEr out toxiC suBstAnCEs