临终 Near Death

　　''Your lungs are about as bad as they can get,'' the nurse explains to the 83-year-old man. ''Your lungs aren't going to get better, and so the act of putting you on the machine is almost a futile effort.'' In a long conversation, the nurse lets this patient know what his options are and tries to determine his wishes, as kindly as possible but with the suggestion that she has d...