35.抽取肋膜積液進行分析，下列何項檢驗數據最不符合 parapneumonic pleural effusion 的診斷？
(A) pleural effusion glucose＝30 mg/ dL
(B) pleural effusion pH＝7.45
(C) positive gram stain
(D) presence of gross pus in the pleural space