问题标题：
【SAT的一道writing的题BerthaLammereceivedherengineeringdegreein1893,whichshethenspecializedprofessionallyinthedesignofmotorsandgenerators.(A)1893,whichshethenspecializedprofessionally(B)1893,specializingasherprofession】
问题描述：
SAT的一道writing的题
BerthaLammereceivedherengineeringdegreein1893,whichshethenspecializedprofessionallyinthedesignofmotorsandgenerators.
(A)1893,whichshethenspecializedprofessionally
(B)1893,specializingasherprofession
(C)1893and,asaprofessional,specialized
(D)1893,then,foraprofession,specializes
(E)1893,shehasspecializedasaprofessional
刘兴权回答：
C(A):theoriginalhasanextra'which'.This'which'hasnoreferenceandisnotnecessary.(B):thetwoactions'received'and'specialized'areclearlyinsequenceandthusthe2ndverb'specialize...
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