The job of finding these dead bodies was carried out by an unpleasant group of people called“body snatchers'’.They went into graveyards(墓地)at night and，using wooden shovels to make less noise。dug up any recently buried bodies.Then they took the bodies to the medical schools and sold them.A body could be sold for between￡5 and~10，which was a lot of money at that time.The doctors who paid the body snatchers had all agreement with t}them—they never asked any questions.They did not desire to know where the bodies came from，as long as they kept arriving.
The most famous of these body snatchers were two men from Edinburgh called William Burke and William Hare.Burke and Hare were different because they did not just dig Up bodies from graveyards.They got greedy and thought of all easier way to find bodies.Instead of digging them up，they killed the poorer guests in Hare’s small hotel.Dr.Knox，the respected surgeon they worked for, never asked why all the bodies they brought him had been strangled (勒死).For many years Burke and Hare were not caught because，unsurprisingly, the bodies of their victims were never found by the police.They were eventually arrested and put on trial in 1 829.
The judge showed mercy to Hare and he was released but Burke Was found guilty and his punishment was to be hanged.Appropriately, his body Was given to the medical school and he ended up on the dissecting table，just like his victims.In one small way,.justice was done.
Now，over 150 years later, surgeons do not need the help of criminals to learn their skills. However，the science of surgery could not have developed without their rather gruesome(令人毛骨悚然的) help.
第11题：The problem facing British surgeons in the early 19thcenturywas that

A. some illnesses remained incurable．
B. few people were willing to work as surgeons．
C. medical expenses were too high．
D. dead bodies were not easily available．