71. The author writes this article for the purpose of ____.

1. showing his interest in making money by selling his own organs
2. criticizing the organ trade industry around the worldly
3. expressing his sympathy for those who sell their organs for a living
4. demonstrating his knowledge about organ transplantation

72. Which of the following is TRUE according to the passage?

1. People who can afford houses, cars and refrigerators often sell their organs.
2. Desperately poor people are likely to sell their own organs for money.
3. Regular selling of one's own organs can make a lot of money.
4. Retired police officers are very often organ dealers everywhere.

73. We can infer that ____.

1. kidney transplantation will not be performed without paid donates
2. organ brokers are all people who used to be jailed
3. some medicals may also be involved in illegal organ deals
4. organ trafficking is as desperate as drug trafficking in the world

74. The doctors of the Brooklyn woman probably implied that ____.

1. her family could get a kidney donation through the black market
2. organ donors usually have a minimum wage of $80 a month
3. middlemen are all based in a gritty port city in Israel
4. organ brokers earn $10 000 for a kidney

75. In the last paragraph, the expression "six grand" most probably means ____.

1. the weight of one kidney
2. six thousand dollars
3. the price of the operation
4. the minimum wage

(Reference keys.)