If someone loses a lot of blood in an accident.
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If someone loses a lot of blood （血）in an accident,he or her must be taker to hospitai and given blood,or he or she__will feel___weak and cold and may even die. Where does this blood come from ?It is from those who are__healthy___and willing to give blood.Ebery three months they go to a piace__ where___blood is collectrd.A special kind of needle（针） is put into the arm.The blood__runs___through the needle and through a rubber tube into a bottle A pint(品脱) of blood__taken___in this way.Then the blood giver.who must be over eighteen,drinks a cup of coffee.He sits down__resting__for a few minutes.If he feels well,he may leave.Three months__later__he may come back and give__another__pint, A person who gives blood feels happy,He knows that his blood will be used to save__someone's__life,Maybe one day___he _will need blood.

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