题目

阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳答案。There is more of a connection between food and culture thanyou may think. On anindividual level, we grow up eating the food of our culture. It becomes a part of who we are. Many associate food from our childhood with warm feelings andgood memories and it ties us to our families, holding a special and personalvalue for us. Food fromour family often becomes the comfort food we seek as adults in times offrustration and stress. On a large scale, traditional food is an important part ofculture. It alsooperates a钛(Ti)和铁(Fe)都是具有广泛用途的金属，我国四川省攀枝花市产钛铁矿．钛铁矿中钛的化合价为+4价，铁为+2价，则钛铁矿的化学式为A.FeTiO3B.FeTiO4C.Fe2TiO3D.FeTi2O4