Astronomers have uncovered evidence that a star that was as bright as the full moon exploding into view 340,000 years ago, emitting dazzling radiation that could have disrupted Earth's protective ozone layer and sunburned our Stone Age ancestors.
A) that a star that was as bright as the full moon exploding into view 340,000 years ago, emitting B) that a star as bright as the full moon exploded into view 340,000 years ago, emitting C) of a star that was as bright as the full moon exploding into view 340,000 years ago and that it emitted D) of a star as bright as the full moon, exploding into view 340,000 years ago and emitting E) of a star as bright as the full moon that exploded into view 340,000 years ago and that emitted
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发表于 2009-10-19 22:53:00
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