单项选择题

若级数分别收敛于S1与S2,则(    )式未必成立.
   A.
   B.
   C.
   D.

A.174.24.96:6088/Latex/latex.action?latex=XHN1bSBfe249MX1ee1xpbmZ0eSB9dV9u'
B.174.24.96:6088/Latex/latex.action?latex=XHN1bSBfe249MX1ee1xpbmZ0eSB9dl9u'
C.

D.E.174.24.96:6088/Latex/latex.action?latex=XHN1bSBfe249MX1ee1xpbmZ0eSB9KHVfblxwbSB2X24pPVNfMVxwbSBTXzI%3D'
F.G.174.24.96:6088/Latex/latex.action?latex=XHN1bSBfe249MX1ee1xpbmZ0eSB9a3Vfbj1rU18x'
H.I.174.24.96:6088/Latex/latex.action?latex=XHN1bSBfe249MX1ee1xpbmZ0eSB9a3Zfbj1rU18y'
J.K.174.24.96:6088/Latex/latex.action?latex=XHN1bSBfe249MX1ee1xpbmZ0eSB9XGZyYWN7dV9ufXt2X259PVxmcmFje1NfMX17U18yfQ%3D%3D'
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