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34.Keeping Pets Nowsdays,many people would like to keep pets as their companions.There are so many pet shops,pet foods and even pet clinics around us.For the pet owners,pets are their favorite friends and can bring them countless pleasures. However,p
疯狂英语易背作文
DAVID GREENE, HOST: The nation's organ transplant network is proposing a change in how livers are made available. The idea is to make the system more equitable, but some are worried that this change would make things less fair for some people, and we
2017年NPR美国国家公共电台9月
If you need a new liver, doctors have about twelve hours to transport it from a donor. That ticking clock severely limits the ability of doctors to get organs to patients. Now researchers have demonstrated a method that kept rat livers viable up to f
2014年Scientific American(七)月
If you need a new liver, doctors have about twelve hours to transport it from a donor. That ticking clock severely limits the ability of doctors to get organs to patients. Now researchers have demonstrated a method that kept rat livers viable up to f
2014年Scientific American(七)月
If you need a new liver, doctors have about twelve hours to transport it from a donor. That ticking clock severely limits the ability of doctors to get organs to patients. Now researchers have demonstrated a method that kept rat livers viable up to f
2014年Scientific American(七)月
If you need a new liver, doctors have about twelve hours to transport it from a donor. That ticking clock severely limits the ability of doctors to get organs to patients. Now researchers have demonstrated a method that kept rat livers viable up to f
2014年Scientific American(七)月