12[单选题]临床资料：女，35岁，自述双侧 * * 轻度胀痛，以月经前期明显，月经来潮后

                                          The True Story of Treasure Island
     It was always thought that Treasure Island was the product of Robert Louis Stevenson's
imagination.__1__,recent research has found the true story of this exciting work.
     Stevenson,a Scotsman,had lived __2__ for many years.In 1881 he returned to Scotland for
a __3__.With him were his American wife Fanny and his son __4__.
     Each morning Stevenson would take them out for a long __5__ over the hills.They had been
__6__ this for several days before the weather suddenly took a turn for the worse.Kept indoors
by the heavy rain,Lloyd felt the days __7__.To keep the boy happy,Robert asked the boy to do
some __8__.
     One morning,the boy came to Robert with a beautiful map of an island.Robert __9__ that the
boy had drawn a large cross in the middle of __10__. "What's that?" he asked. "That's the __11__
treasure," said the boy.Robert suddenly __12__ something of an adventure story in the boy's __13__.
While the rain was pouring,Robert sat down by the fire to write a story.He would make the __14__
a twelve year old boy,just like Lloyd.But who would be the pirate(海盗)?
     Robert had a good friend named Henley,who walked around with the __15__ of a wooden leg.
Robert had always wanted to __16__ such a man in a story.__17__ Long John Silver,the pirate with
a wooden leg,was __18__.
     So,thanks to a __19__ September in Scotland,a friend with a wooden leg,and the imagination of
a twelveyearold boy,we have one of the greatest __20__ stories in the English language.