A、FrEE trAnsFEr BEtwEEn tErminAls is AvAilABlE using hEAthrowExprEss AnD hEAthrowConnECt trAins．
A、hEAthrowAirport proviDEs FrEE piCkup sErviCE．
B．hEAthrowAirport AnD loCAl DEstinAtions ArE ConnECtED By FrEE trAin sErviCEs．
C．FrEE trAin sErviCEs ConnECt thE tErminAls oF hEAthrowAirport．