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充分又必要条件
释义
充分又必要条件
chōng fèn yòu bì yào tiáo jiàn
如果有甲必有乙,无甲必无乙,那么甲就是乙的充分又必要条件。例如,三角形是等角的,则三角形是等边的,而只有三角形是等角的,三角形才是等边的。因此,三角形等角就是三角形等边的充分又必要条件。
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residenza
residenzs
reside permanently
reside permanently in paris
resider
residerce
Resideri
resides in
reside tackle
reside view
reside with
reside within
residfiner
residfining
residfining process
resid hds process
resid hydrodesulfurization process
resid hydroprocessing process
resid hydrotreating
residing
re-siding
Residing as visitors
residing in
residing prefecture without actual domains
residers
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更新时间:2025/4/26 13:33:52