shihwei 說
15 years ago
找到了內呼吸和外呼吸的祕密啦 (rofl)
latest #7
vicki
15 years ago
= =?
vicki
15 years ago
欸樣本標準差上面那個離差平方合......
shihwei 說
15 years ago
我一開始根本搞不懂他們的差別嘿嘿
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vicki
15 years ago
ㄎㄎ
shihwei 說
15 years ago
等等我吧
shihwei 說
15 years ago
等我看完內外呼吸
vicki
15 years ago
喔
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