第十二篇

• 1、

  Paragraph 2 ________

• 2、

  Paragraph 3 ________

• 3、

  Paragraph 4 ________

• 4、

  Paragraph 5 ________

• 5、

  Early discovery of breast cancer may ________.

• 6、

  Advantages of screening women under 50 are _______

• 7、

  Delaying the age at which screening starts may ___

• 8、

  Radiation exposure should be ________.