Thiswasreturnedbecausethepersonthisletterwasaddressedhaddiedthreeyearsago．A．towhomB．towhichC．whichD．whom
This was returned because the person _____ this letter was addressed had died three years ago ．
A ． to whom B ． to which C ． which D ． whom
A
E^2*R/(R+r)^2=E^2/(R-r)^2/R+4r(某公式推导最后两行）本人只得：=E^ 2020-06-07 …
定态薛定谔方程问题定态薛定谔方程的解ψ（r,t)=ψ(r)f（t)=ψ(r)e^(-i/h*Et) 2020-07-23 …
RSA算法中r无法满足e*r%t==1的问题p=47;q=59;t=(p-1)×(q-1)=266 2020-07-23 …
RSA算法中r无法满足e*r%t==1的问题p=47;q=59;t=(p-1)×(q-1)=266 2020-07-23 …
写单词,这些单词打乱顺序了!：1.d,f,e,n,i,f,e,r,t,()2.g,h,o,e,t, 2020-07-26 …
关于高一函数的换元法已知f(x-1)=x²-2x,求f(x)老师给的解题过程：设t=x-1∵x∈R 2020-08-01 …
英语单词我的作业有一题：把混乱的字母组成单词.有：1.e.c.n.s.i.t2.u.e.r.t.t. 2020-10-31 …
i(t,R)=(10/R)*e^(-1000t/R),R和t都是未知量.为了使t至少大于10后i才能 2020-11-16 …
n.h.c.e.r.t这六个单词能组成什么单词?急!应该是：n.h.c.e.r.t这六个单词合在一起 2020-11-27 …
这几个字母怎么拼才是单词呢?B-E-E-N-M-O-R-VA-E-R-T-WA-B-C-D-O-P- 2021-02-09 …