美方做法极其不负责任，中方坚决反对

Core Viewpoint - China firmly rejects the U.S. accusations regarding its nuclear explosion tests, asserting that there is no factual basis for these claims [1][2]. Group 1: China's Position on Nuclear Testing - China's representative to the UN, Li Song, stated that the U.S. accusations of China conducting nuclear explosion tests in June 2020 are baseless [1]. - The Comprehensive Nuclear-Test-Ban Treaty Organization's Executive Secretary, Floyd, confirmed that no events characteristic of nuclear tests were detected on the day in question, supporting China's stance [1]. - China has consistently upheld its commitment to the Comprehensive Nuclear-Test-Ban Treaty since it was signed, maintaining a moratorium on nuclear tests since 1996 [2]. Group 2: U.S. Nuclear Policy Critique - Li Song criticized the U.S. for distorting China's nuclear policy and accused it of seeking nuclear hegemony while shirking its nuclear disarmament responsibilities [2]. - He emphasized that the U.S., as a country with a large nuclear arsenal, should prioritize its nuclear disarmament obligations, which is a long-standing consensus in the international community [2]. - The representative urged the U.S. to reaffirm its commitment to a moratorium on nuclear tests among the five nuclear powers to maintain global consensus on nuclear testing prohibition [2]. Group 3: China's Commitment to Peace - China maintains a defensive nuclear strategy and emphasizes its commitment to peaceful development and international security [2]. - The country aims to play a constructive role in maintaining international peace and security [2].