英语考研历年真题

　　　Directions: AncientGreekphilosopherAristotleviewedlaughteras“abodilyexerciseprecioustohealth.”But­­­_____someclaimstothecontrary,laughingprobablyhaslittleinfluenceonphysicalfilnessLaughterdoes_____short-termchangesinthefunctionoftheheartanditsbloodvessels,