Toni Morrison, Nobel Prize-winning American writer, says if there’s a book you really want to read, but it ______ yet, then you must write it.

A．hasn’t been written

B．hasn’t written

C．doesn’t write

D．isn’t written

男性，34岁，2天前着凉后发热，体温38.9℃，伴呼吸困难，咳嗽，咳少量黄痰，腹泻两次，自服“先锋霉素”无效。入院查体：嗜睡，口唇轻度发绀，脉搏100次/分，呼吸28次/分，双肺叩清音，双下肺可闻及湿啰音，心律整，腹(-)。血WBC12.3×10⁹/L，N0.87；血气分析：pH7.35，PaO₂57mmHg，PaCO₂31mmHg；胸片示：左上肺前段、左上肺及右上肺前段、有中肺见斑片状阴影。最可能的诊断是

A．军团菌肺炎

B．金黄色葡萄球菌肺炎

C．ARDS

D．肺栓塞

E．支原体肺炎