听力原文： President Chirac of France has attacked bilateral trade deals which he said could undermine internationally agreed measures that allow poor countries to produce cheap copies of anti-AIDS drugs. Mr. Chirac said that if poor countries were forced into dropping the right to make affordable generic medicine, this would be a form. of blackmail. His comments came in a statement read at the International AIDS Conference in Bangkok. There're reports of increasing tensions at the conference between the American delegation and officials of the global fund to fight AIDS that expressed concern about continued American commitment. According to the internationally agreed measures, poor countries can ______ cheap copies of anti-AIDS drugs.