·you will hEAr A prEsEntAtion ABout CountErtrADE.
·mArk onE lEttErA,B、orC、For thE CorrECt AnswEr.
·you will hEAr thE rECorDing twiCE.

thE BAsiC ChArACtEristiC oF CountErtrADE trAnsACtions is thAtA、thEy EnCompAss thE iDEAs For monEy.B、thErE is A linkAgE BEtwEEn Exports AnD imports oF gooDs or sErviCEs.C、thEy Don’t involvE FinAnCiAl sEttlEmEnt.