– I’m planning to visit the Yellow River Delta National Nature Reserve(黄河三角洲国家级自然保护区). is it? -- It’s natural and beautiful. I think tourists can enjoy wonderful views there. A. How B. What C. When D. Where两宋“物质文明和精神文明所达到的高度,在中国整个封建社会历史时期内是座顶峰”。下列史实不能说明这一观点的是( )A.城市商品经济高度繁荣B.统一多民族国家得到巩固C.重文轻武,士人地位较高D.对外开放,海外贸易兴盛