作业帮麻烦帮忙分析句子结构、成分.
来源：学生作业帮 编辑：拍题作业网作业帮 分类：英语作业 时间：2024/04/30 18:27:23
麻烦帮忙分析句子结构、成分.
In the arena of space research,live animals are still practical alternatives on a flight not considered to be sufficiently safe for human astronauts.
In the arena of space research,live animals are still practical alternatives on a flight not considered to be sufficiently safe for human astronauts.
In the arena of space research,(地点状语)live animals （主语）are （谓语）still practical alternatives （表语）on a flight （地点状语）not considered to be sufficiently safe for human astronauts(做flight的定语）