In 1901，Karl Landsteiner，an Austrian doctor，found that there were four kinds of blood.These four types （血型） were named，A，B，AB，and O.People have one of these four types.Blood type O is the most common around the world.Blood type A is the second most common，and type AB is the least common.If people with type A blood are given type B blood，or people with type B blood are given type A blood，they will probably die.
   In 1927，a Japanese doctor，F(xiàn)urukawa Takeji，carried out research and came up with the idea that people with different blood types also had different personalities （性格）.He said that people with type A blood are usually calm and serious；people with type B blood are cheerful and outgoing people with type O are generous （慷慨的） and honest；while those with type AB blood are often caring and careful.
   More recently，a doctor named DR.Peter D' Adamo in the United States wrote a book that links （關(guān)聯(lián)） blood types and what people eat.For example，his book Eat Right For Your Type Suggests people with type O blood should eat more meat and less bread.A diet for people with type A blood has more vegetables.His book has been a hint （暗示） with people who want to lose weight.However，Dr.Peter D' Adamo believes that eating food that matches a person's blood type can do more than help them lose weight.He think it will make the person healthier in other ways，too.
 
（1）What blood type is the most common according to the passage？

A

A

A.Type O.
B.Type B.
C.Type AB.
（2）How many doctors gave their opinions about the blood type in the passage？

A

A

A.3.
B.4.
C.5.
（3）What did Furukawa Takeji find in 1927？

B

B

A.There were four kinds of blood types.
B.Blood types had something to do with personalities.
C.People with type B blood were calm and serious.
（4）Who might be interested in the book Eat Right For Your Type？

B

B

A.People who have blood problems.
B.People who want to lose weight.
C.People who want to change blood.