这两个加起来不都一样吗
by λᴉʍ @ 2018-10-25 21:50:53
QAQAQ围观YCHdalao
by zyj_Orz @ 2018-10-25 21:53:18
@[xzz_233](/space/show?uid=23118) 不一样啊
一个是主动感兴趣
一个是被感兴趣
by star_magic_young @ 2018-10-26 19:09:23
@[star_magic_young](/space/show?uid=38372) 加起来一样啊
by λᴉʍ @ 2018-10-26 19:44:33
@[xzz_233](/space/show?uid=23118) 喵喵喵?
by star_magic_young @ 2018-10-26 21:13:39
@[star_magic_young](/space/show?uid=38372) 两种定义下的$\sum |B(V)|$都一样啊
by λᴉʍ @ 2018-10-26 21:55:01