【单选题】投保人指定或变更受益人须经过( )同意。
【单选题】There are lots of new books and old ( ) in our library.
【简答题】Our new office building is______(infinite)better than the old one.
【单选题】. According to some doctors, one of the ways to prevent us from growing old is to make sure that our brains get enough___.
【单选题】调整平等主体的公民之间、法人之间及公民与法人之间的人身关系和财产关系的法律规范的总称是( )