问题补充：
Only by increasing the number of doctors by 50 percent properly in this hospital. (·大纲全国，32)
A. can be the patients treated
B. can the patients be treated
C. the patients can be treated
D. treated can be the patients
答案：
A. can be the patients treated
(答案→)B. can the patients be treated
C. the patients can be treated
D. treated can be the patients
解析：B
解析本题考查部分倒装。句意为：只有增加50%的医生，这个医院的病人才能得到恰当的医治。“only＋状语”放于句首时句子须用部分倒装。
