找错(不要嫌我烦哦)Iftheradiationdidn'tcomefromoldstars,itmayhavecomeratherfromstarsthatarehiddenbythehugecloudsofdust.Adidn'tBfromCratherDby为什么不选A?不是虚拟么?

Question

找错(不要嫌我烦哦)
If the radiation didn't come from old stars,it may have come rather from stars that are hidden by the huge clouds of dust.
A didn't B from C rather D by
为什么不选A?不是虚拟么?

Answer 1

这里没有虚拟的语气,只是陈述的语气.
如果射线并非来自已知的星球,那么它有可能来自隐藏在巨大星际尘埃里的星球.
rather做副词,可以表示“与……相反”的含义.这里应该不是相反的含义.
rather还可以用做“not……,but rather”的形式,表示“不是……,而是……”.但是一般不在条件句中这样用.