一个英语题不会求解答
原文:Itisonlybecauseoftheenormousinterstellardistancesthatsolittlematerialperunitofvolu...
原文:
It is only because of the enormous interstellar distances that so little material per unit of
volume becomes so significant. Optical astronomy
is most directly affected, for although interstellar gas
is perfectly transparent, the dust is not
题目It can be inferred from the passage that it is
because space is so vast that:
答案:
stars can be far enough from Earth to be obscured
even by very sparsely distributed matter
为啥? 展开
It is only because of the enormous interstellar distances that so little material per unit of
volume becomes so significant. Optical astronomy
is most directly affected, for although interstellar gas
is perfectly transparent, the dust is not
题目It can be inferred from the passage that it is
because space is so vast that:
答案:
stars can be far enough from Earth to be obscured
even by very sparsely distributed matter
为啥? 展开
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