根据下列文章,请回答 36～40 题。
The Body Thieves
In the early nineth century in Britain，manyimprovements were being made in the world of medicine．Doctors and surgeons werebecoming more knowledgeable about the human bed y．Illnesses that had been fatala few years before were now curable．However, surgeons had one problem．Theyneeded dead bodies to cut up，or dissect(解剖)．This was the only way that theycould leam about the flesh and bones inside the body, and the only way to teachnew surgeons to carry out operations．
Thejob of finding these dead bodies was carried out by an unpleasant group of people called” body snatchers”．They went intograveyards(墓地)at night and，using wooden shovels to make less noise。dug up anyrecently buried bodies．Then they took the bodies to the medical schools andsold them．A body could be sold for between￡5 and￡1o．which was a lot of money atthat time．The doctors who paid the body snatchers had an agreement withthem—-they never asked any questions．They did not desire to know where thebodies came from．as long as they kept arriving．
The most famous of these body snatcherswere two men from Edinburgh called William Burke and William Hare．Burke andHare were different because they did not just dig up bodies from graveyards．Theygot greedy and enough of an easier way to find bodies．Instead of digging themup，they killed the poorer guests in Hare's small hotel。Dr Knox．The respectedsurgeon they worked for, never asked why all the bodies they brought him hadbeen strangled(勒死)．
For many years Burke and Hare were notcaught because，unsurprisingly, the bodies of their victims were never found bythe police．They were ually arrested and put on trial in 1829．The judgeshowed mercy to Hare and he was released but Burke was found guilty and hispunishment was to be hanged．Appropriately, his body was given to the medicalschool and he ended up on the dissecting table，just like his victims．in onesmall way, justice was done．
Now，over 15o years later, surgeons do notneed the help of criminals to learn their skills．However, the science ofsurgery could not have developed without their rather gruesome(令人毛骨悚然的)help．
第 36 题 Theproblem facing British surgeons in the early 19th century was that