未分类题

计算平均发展水平可采用的公式有(    )。
   A.
   B.
   C.
   D.
   E.

A.B.174.24.96:6088/Latex/latex.action?latex=XGZyYWN7XHN1bSBhfXtufQ%3D%3D'
C.D.174.24.96:6088/Latex/latex.action?latex=XGZyYWN7XGZyYWN7MX17Mn1hXzErYV8yK2FfMytcY2RvdHMgK1xmcmFjezF9ezJ9YV9ufXtuLTF9%0D%0A'
E.F.174.24.96:6088/Latex/latex.action?latex=XGZyYWN7XGZyYWN7YV8xK2FfMn17Mn1mXzErXGZyYWN7YV8yK2FfM317Mn1mXzIrXGNkb3RzICtc%0D%0AZnJhY3thX3tuLTF9K2Ffbn17Mn1mX3tuLTF9fXtcc3VtIGZ9'
G.H.174.24.96:6088/Latex/latex.action?latex=XGJhcntjfT1cZnJhY3tcYmFye2F9fXtcYmFye2J9fQ%3D%3D'
I.J.174.24.96:6088/Latex/latex.action?latex=XDtee259XCFcc3FydHtcZnJhY3thX259e2FfMH19'

【参考答案】

ABCD