The nearest black holes are hundreds of light years away from us.A．RightB．WrongC．Not menti

They are sure they have all the facts they need to ______ the existence of a black hole.A．

Black Holes Most scientists agree that black holes exist but are nearly impossible to loca

Black holes exist but are difficult to observe.A．RightB．WrongC．Not mentioned

The center of a black hole is empty.A．RightB．WrongC．Not mentioned

共用题干Black Holes1 Black holes can be best

共用题干Black Holes1 Black holes can be best