A．It is the best known long distance race in the world．
B．It is the biggest Marathon race in the U．S．
C．It was first held 50 years ago．
D．It attracts nearly 5000 official competitors in recent years．
根据题干中出ffZ的BostonMarathon，the ancientGreek runnerPheidippides和Marathonnlllllers可以判断短文谈论的是有关马拉松比赛的事情。
短文首先介绍了美国人对跑步的热爱；接着以马拉松为例介绍了跑步的意义：跑步不是为了超越对手。而是为了战胜自我。
D。本题考查短文的多个细节，需一一排除。短文提到，波士顿马拉松是美国最出名的长跑比赛，最近几年已经有将近5000名正式的参赛人员，由此可知本题选D。
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A．He won the first prize．
B．He died because of fatigue．
C．He fell behind the other runners．
D．He gave up because he was fired．
A．The victory over one's fellow runners．
B．The victory over former runners．
C．The victory of will-power over fatigue．
D．The victory of one's courage over illnesses．
A．gets to the finish line first
B．breaks the record
C．does not break the rules
D．covers the whole distance