南大牛人GRE_作文5.5_分_备考经验

果果果 · 发表于 2014-7-21 10:32:59

厉害！！

hersheydada · 发表于 2014-7-21 10:46:08

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WillCD · 发表于 2014-7-21 13:39:34

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WillCD · 发表于 2014-7-21 13:40:39

看看看看看看看

Silencedolce · 发表于 2014-7-22 00:49:24

的伟大伟大为单位

wlqsnine · 发表于 2014-7-22 06:08:24

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hansen0514 · 发表于 2014-7-22 09:24:17

good!!!!!!!!

logggggg · 发表于 2014-7-22 15:16:45

太牛了！！！

ianfung9264 · 发表于 2014-7-23 04:21:18

Explain how visual binaries are observed
Visual binarie is the rare case where two gravitationally bound stars can be resolved as two separate stars. They must be widely separated with respect to line of sight. They can be observed optically.

wuhaochase · 发表于 2014-7-23 11:25:12

牛逼人啊

[备考心经] 南大牛人GRE_作文5.5_分_备考经验

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