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BBC英语新闻:美国科学家首次修复人类胚胎DNA

2017-08-07    来源:BBC    【      美国外教 在线口语培训

BBC news

2017-08-04

BBC News with Eileen McCue.

President Trump has reluctantly signed into law a congressional bill imposing sanctions on Russia over its policy in Ukraine and alleged meddling in last year's US presidential election. Afterwards, he called the legislation seriously flawed, saying it encroachedon his powers to negotiate foreign policy and hurt the interests of European allies.

The company that provided the Venezuelan voting system for the controversial constituent assembly elections says the turnout figure was inflated by at least one million. The speaker of the opposition-controlled National Assembly called on prosecutors to open a criminal investigation immediately.

Amid rowdy scenes, the Brazilian Congress is voting in a historic session that will decide the political future of President Michel Temer. Mr. Temer has been accused of receiving big bribes from a leading company, and Congress could send him to stand trial.

The Italian Parliament has approved proposals to send its Navy to help the Libyan Coast Guard combat people traffickers. But Italy's government stressed that the mission would act only with the agreement of the UN-recognized government of national accord in Tripoli.

Western powers have demanded action at the UN following Iran's launch of a rocket capable of putting a satellite into orbit. The US,Britain, France and Germany said the technology used was closely related to that of a ballistic missile.

Researchers have warned that hundreds of millions of peoplein South Asia will face potentially un-survivable humidity by the end of thiscentury, if global warming isn't curbed. They say agricultural workers in the regions around the Indus and Ganges Rivers are most risk.

And using its experimental gene-editing techniques, scientists in the United States have successfully corrected the DNA of human embryos to remove inherited heart disorder. Critics warned that eventually the method could be used to produce so-called designer babies.

BBC News.



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