32. Only by increasing the number of doctors by 50 percent properly in this hospital.
(A) can be the patients
(B) can the patients be treated
(C) the patients can be treated
(D) treated can be the patients

考查倒装句。Only+状语（从句）提前放于句首，句子应用不完全倒装，即将助动词can放于主语the patients之前，故答案选B。