The flute found could play from the 3rd to the 6th note of the 7-note scale. It is possible that this flute could ONLY play this 4 notes instead of the required 7th.
Answer E claims that the flute, at least based on its POSSIBLE original length, could play the full notes. In other words, E makes sure the bone from which the flute is made is possible to support the 7 holes required for the 7-note diatonic scale. This is in fact a necessary assumption for the conclusion of the argument and stating the assumption definitely strengthens the argument.
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发表于 2011-12-31 12:59:51
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