单选题 In ______ of speed, safety and price, the high-speed railway system is perhaps the world"s model railway.
【正确答案】 A
【答案解析】[解析] in terms of：就……而言，在……方面；in case of：以防，假如，如果发生；in need of：需要；in search of：寻找。根据句意，选A。