2-1 机场迎宾Greetings at the AirportA: Excu me, sir; is this Prof. Tallack from London?B: Yes, I’m George Tallack from the School of Oriental and African Studies, University of London. You must be Miss
一、阅读理解John is an English boy. He is thirteen. He lives in London. He studies English, Science, Art and PE at school. He likes Chine very much. He also likes singing Chine songs. He has a Chine f
471Adopted:21st July 1997 OECD GUIDELINE FOR TESTING OF CHEMICALSBacterial Rever Mutation TestINTRODUCTION1.The bacterial rever mutation test us amino-acid requiring strains of Salmonella typhim
