题目

Human remains of ancient settlements will be reburied and lost to science under a law that threatens research into the history of humans in Britain, a group of leading archaeologists (考古学家) says. In a letter addressed to the justice secretary, Ken Clarke, 40 archaeologists write of their “deep and widespread concern” about the issue. It centres on the law introduced by the Ministry of Justice in 2008 which requires all human remains unearthed in England and Wales to be reburied within two years, regardless of their age. The decision means scientists have too little time to st（2012•蓝山县模拟）△ABC中，角A、B、C的对应边分别为a、b、c，且满足a2-ab+b2=c2，（1）求角C；（2）若△ABC的周长为2，求△ABC面积的最大值．