材料一 赵武灵王(前325 ~ 前299年在位)与肥义谋胡服骑射。国人皆不欲,公子成(赵武灵王的叔父)曰:臣闻中国者,蛮夷之所则效也。今王舍此而袭(穿)远方之服,臣愿王熟图之也!王曰:夫服者,所以便用也;制国有常,利民为本。吾国东有齐、中山,北有燕、东胡,西有楼烦、秦、韩之边。今无骑射之备,则何以守之哉?而叔顺中国之俗,恶变服之名,非寡人之所望也。公子成听命,乃赐胡服。于是始出胡服令,而招骑射焉。 ——摘编() 2. —You know much about China Dinosaur Park. you the park before? —Yes. I went there last National Day. A. Have;gone to B. Did;go to C. Have;been D. Have;been to