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一、选择题(每小题7分,共42分)rn1.若a、b为实数,且满足(a-1)2√b-2=0,则1/ab+1/(a+1)(b+1)+1/(a+2(b+2)…+1/(a+2008)(b+2008)=( ).rn(A)2006/2007 (B)2007/2008rn(C)2008/2009 (D)2009/2010