下列事实不属于社会行为的是
下列有关细胞的叙述,错误的是
①铁钉表面产生气泡;②液体由无色逐渐变为浅绿色;③铁钉的质量减轻;④液体的质量减轻.
(2015•广东佛山)Last night, thousands of people ________ to see the stars arrive at the ceremony.