quEstions 18 to 20 ArE BAsED on thE Following pAssAgE.At thE EnD oF thE pAssAgE, you will BE givEn 15 sEConDs to AnswEr thE quEstions.
now listEn to thE pAssAgE.
whAt’s BEing mAinly DisCussED in thE pAssAgEA．thE stuDy oF thE short-tErm mEmory.
B．thE stuDy oF thE long-tErm mEmory.
C．DiFFErEnCEs BEtwEEn thE short-tErm mEmory AnD thE long-tErrA mEmory.
D、similAritiEs BEtwEEn thE short-tErm mEmory AnD thE long-tErm mEmory.