These fans arrived very early. They could see their favorite stars. (合并成一个句子)
These fans arrived very early ____ they could see their favorite stars.
下列有关海啸的叙述正确的是( )
元素周期表中硒元素的某些信息如图所示,下列有关硒的说法不正确的是( )
燃烧是生活中一种常见的现象.下列有关燃烧和灭火的说法错误的是( )