第4题: [单项选择]Whoever formulated the theory of the origin of the universe, it is just______and needs proving. A. spontaneous B. hypothetical C. intuitive D. empirical 参考答案:B 答案解析:解析:句意:不论是谁提出的有关宇宙起源的理论,该理论都只是假设,有待证实。“spontaneous”自发的,“hypothetical”假设的,“intuitive”直觉的,“empirical”实证的。