1、A good title for this passage is ________.
A、Getting Blood and Plasma
B、Special Blood Types
C、Human Blood Types
D、The Blood Bank of a Hospital
2、The word "hence" in line 10 means _________
A、always
B、 often
C、 therefore
D、 seldom
3、In a blood transfusion, it is easiest to find the acceptable type of blood for a person with the blood type of ________
A、A
B、 B
C、 AB
D、 O
4、The purpose of using salt and plasma before a blood transfusion is to allow time ______.
A、to test the reactions to the transfusion
B、for matching the blood to be transfused with the patient's blood
C、 for the blood to be delivered from the blood bank
D、 to select a new type of blood for the patient
5、Most Europeans have blood type _________
A、A
B、B
C、O
D、A or O
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