由俄罗斯、欧洲和中国三方面共同参与的模拟探索火星实验项目“火星—500”,于2011年11月4日宣告结束。该项目历时520天,6名志愿者模拟了宇航员搭乘航天器飞往、登陆火星和返回地球的整个过程,其目的是研究长途太空旅行对人的心理和生理影响。这表明①实践是客观见之于主观的物质性活动 ②实践活动具有社会历史性③实践的发展产生于认识的需要 ④意识活动具有目的性、计划性
---____I didn’t hear you clearly. It’s too noisy here. ---I was saying that the party was great.
The audience, ________ , enjoyed the performance.
. I lost my wallet last week, but ____ I didn't have any money or credit cards in it at that time.
.The book is for the students ________ native language is not Chinese to study in a Chinese university.
You as well ________ right.