listEning 5 "BiologyClAss"
{$mEDiAurl}


how DoEs thE proFEssor hElp thE stuDEnts to rEmEmBEr thE typEs oF BACtEriA
A、hE shows thEm mAny ExAmplEs oF sliDEs.
B、hE tElls thEm to look At spECimEns in thE lAB、
C、hE usEs thE First lEttEr to rEprEsEnt thE shApE.
D、hE ExplAins thE vAriousDnA、struCturEs.