题目

羽毛球拍从木质到铝合金，再到碳纤维，经历了一个技术发展的过程。这体现了技术的（ ） A . 目的性 B . 综合性 C . 创新性 D . 专利性 答案：COur new English teacher , who is said to have moved back to China, _______ in America for almost ten years.A．lived B．has lived C．was living D．had lived