The theory of the origin of the universe is just ______ and lacks proof.A、sponta

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问题 The theory of the origin of the universe is just ______ and lacks proof.

选项 A、spontaneous
B、hypothetical
C、intuitive
D、empirical

答案 B

解析 hypothetical假设的；spontaneous自发的；intuitive直觉的；empirical凭经验的。句意：宇宙起源的理论，只是一种假设，还缺乏证实。

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