单选题 During the past ten years there have been dramatic changes in the international situation.
【正确答案】 C
【答案解析】[解析] 画线词dramatic为形容词,意为“引人注目的”。A项permanent意为“永久的,不变的”;例:The reform may be seen as temporary rather than permanent.改革被认为可能是暂时的,而不是永久的。B项powerful意为“强大的,强有力的”;例:Several small businesses consolidated to form a large powerful company.几家小企业合并成一家大型的实力雄厚的公司。C项striking意为“显著的,引人注目的”;例:There is a striking difference between Jane and Mary.简和玛丽之间有着显著的差异。D项practical意为“实际的,实用性的”;例:This is a practical course, with a minimal amount of theory.这是一门很实用的课程,理论极少。故本题选C。