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Great post, I think people should learn a lot from this website its rattling user genial . “You don’t have to deserve your mother’s love. You have to deserve your father’s.” by Robert Frost.
Thank you for sharing superb informations. Your web-site is so cool. I am impressed by the details that you have on this blog. It reveals how nicely you perceive this subject. Bookmarked this web page, will come back for extra articles. You, my pal, ROCK! I found just the info I already searched everywhere and simply could not come across. What a great site.
站在四维以上可以的高度应该
相对论中用到的伪欧几里德几何不就是把时间空间结合在一起描述的吗？