题目

China has been developing rapidly since its foundation, but as is known to us, she is still a country _______________ the Third World. A．belongs to    B．belonged to    C．belonging to    D．to belong to 答案：C 科学家在物理学领域里的每次重大发现，都有力地推动了人类文明的进程，最早利用磁场获得电流促使人类进入电气化时代的科学家是 [　　] A．贝尔 B．奥斯特 C．沈括 D．法拉第