What are the forensic experts trying to do? [br] [originaltext] Forensic ex

游客2024-10-26  5

问题 What are the forensic experts trying to do? [br]  
Forensic experts yesterday began searching for clues in a bomb-shattered carriage lying 500 yards into one of the oldest and deepest Tube lines.
     The pace was slow and the approach delicate because the bodies of as many as 20 victims of the Piccadilly Line bomb near King’s Cross were still trapped in the wreckage.
     After engineers declared the tunnel structurally safe, the aim was to remove the dead and start a fingertip examination.
     If the experts are lucky, they will find chemical traces, tiny scraps of bomb casing or detonation and timing devices. The carriage may be removed from the tunnel to allow better access but that could involve dismantling it, which could take many days.
     Similar searches started 100 yards into a tunnel near Liverpool Street station, where another of the bombs went off, and outside Edgware Road.  Bodies were recovered and it was hoped that the two carriages could be removed.

选项 A、20.
B、100.
C、500.
D、Unknown.

答案 D

解析 由于新闻里没有具体提到需要多少天,只是说会花很多天,所以,答案是D。
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