题目

It was getting late. There was no noise in the forest. We could only hear the birds singing. And then, a bear?a big brown bear?came into the forest.The bear stopped under a tall tree. He was very hungry. He looked up into the tree. There in the nut tree was his supper?a supper of nice nuts. But the nuts were high up in the tree. The hungry bear could not reach them. But he knew how to get his supper. He climbed up the tree.Up and up he climbed. He climbed onto a big branch of the tree. He sat there and then shook(摇) the branch again and again. At last the branch broke. The brown bear fell do假如你是旅行社的一名导游，一位游客要去我国历史上第一个统一的多民族的封建国家的都城参观，请你告诉他应该去下列哪一城市？(　　)A.西安B.南京C.咸阳D.洛阳