Which of the following can best sum up the passage?
A.Legal and ethical problems of organ transplantation.
B.Some underlying principles on organ transplantation.
C.The diagnosis of death before organ transplantation.
D.The difference between compulsory postmortem exam and organ transplantation.
A、Organ shortage
B、Organ donation
C、Organ sale
D、Alternative organ sources
A.Graft
B.Transplantation
C.Antibody
D.Recipient
The tongue, ______, is an important aid in chewing and swallowing.
A.is the chief organ of taste
B.tasting the organ chiefly
C.the chief organ of taste
D.the organ chiefly tastes
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