．解析：选B　推理判断题。根据倒数第二段中的“Those doctors who have entered ... boundaries with patients.”可推知，网络使得医生更容易模糊与病人之间的职业分界线，故选B项。C

　　Samuel Osmond is a 19­year­old law student from Cornwall，England.He never studied the piano.However，he can play very difficult musical pieces by musicians such as Chopin and Beethoven just a few minutes after he hears them.He learns a piece of music by listening to it in parts.Then he thinks about the notes in his head.Two years ago，he played his first piece Moonlight Sonata (奏鸣曲)by Beethoven.He surprised everyone around him.

　　Amazed that he remembered this long and difficult piece of music and played it perfectly，his teachers say Samuel is unbelievable.They say his ability is very rare，but Samuel doesn't even realize that what he can do is special.Samuel wanted to become a lawyer as it was the wish of his parents，but music teachers told him he should study music instead.Now，he studies law and music.

　　Samuel can't understand why everyone is so surprised.“I grew up with music.My mother played the piano and my father played the guitar.About two years ago，I suddenly decided to start playing the piano，without being able to read music and without having any lessons.It comes easily to me—I hear the notes and can bear them in mind—each and every note，”says Samuel.

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