A Palestinian woman is helped by a paramedic out of her building, damaged during an Israeli air raid on a nearby sporting centre in Gaza City November 19, 2012.   Israeli air strikes on Sunday killed 31 Palestinians in the bloodiest day so far of its air campaign on the Gaza Strip, as diplomatic efforts to broker a truce intensified.   AFP PHOTO/MARCO LONGARI        (Photo credit should read MARCO LONGARI/AFP via Getty Images)