TOEFL Reading: ETS-TOEFL阅读机经 - I5T13SG5B3O15S31L$

Which of the following can be inferred from paragraph 4 about the radiometric dating of meteorites? A. Scientists tried several different radiometric systems before finding one that worked. B. The radiometric dating of different meteorites produced similar results. C. Many meteorites were damaged by the radiometric dating. D. Radiometric dating was not as accurate as scientists expected.