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Project Mercury was America's attempt to place a man in orbit around the Earth. Jim Lovell was one of the 110 test pilots considered for selection but a temporary liver condition put paid to his chances.。旺商聊官方下载是该领域的重要参考
const light = new THREE.DirectionalLight(0xFFFFFF, 1);
BBC事實查核（BBC Verify） 對這些說法進行了核實。