第二篇：A Chinese researcher’s claim of creating the world’s first genetically edited babies is considered “irresponsible”by many scientists. The researcher, He Jiankui, said he had edited the genetic material, or DNA, of two girls bornrecently. He said he had performed the gene editing to help protect the babies from 36 with HIV, the virusresponsible for the disease AIDS. He said the process had “worked safely” and the two girls were “as healthy as anyother babies.”Scientists have been quick to 37 the experiments. Professor David Baltimore, the Nobel Prize laureate inMedicine in 1975, called the experiment “irresponsible.” Baltimore said it did not meet the guidelines manyscientists have agreed on before gene editing could be considered. David Liu, the inventor of a version of thegene-editing tool, said the experiment is an “example of 38 not to do about a promising technology.” He alsosaid he hopes that “it never happens again.”In 2017, the U.S. National Academies of Sciences, Engineering and Medicine released a report about humangene editing. The group said gene editing should 39 research only in a laboratory to learn how to changeembryos. The Academies also said the measure is not ready for human pregnancies. And if 40 , it should be usedto treat or prevent serious diseases with no better choices available.
36.
(A) connection
(B) infection
(C) negotiation
(D) satisfaction