Through a telescope the surface of the Mars when it comesnearer to the earth.A....Through a telescope the surface of the Mars when it comesnearer to the earth.A.can one observe B.one can observe C.can observe one D.observe one can 为什么选A不选
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![Through a telescope the surface of the Mars when it comesnearer to the earth.A....Through a telescope the surface of the Mars when it comesnearer to the earth.A.can one observe B.one can observe C.can observe one D.observe one can 为什么选A不选](/uploads/image/z/11857983-15-3.jpg?t=Through+a+telescope+the+surface+of+the+Mars+when+it+comesnearer+to+the+earth.A....Through+a+telescope+the+surface+of+the+Mars+when+it+comesnearer+to+the+earth.A.can+one+observe+B.one+can+observe+C.can+observe+one+D.observe+one+can+%E4%B8%BA%E4%BB%80%E4%B9%88%E9%80%89A%E4%B8%8D%E9%80%89)
Through a telescope the surface of the Mars when it comesnearer to the earth.A....Through a telescope the surface of the Mars when it comesnearer to the earth.A.can one observe B.one can observe C.can observe one D.observe one can 为什么选A不选
Through a telescope the surface of the Mars when it comesnearer to the earth.A....
Through a telescope the surface of the Mars when it comesnearer to the earth.A.can one observe B.one can observe C.can observe one D.observe one can 为什么选A不选B
Through a telescope the surface of the Mars when it comesnearer to the earth.A....Through a telescope the surface of the Mars when it comesnearer to the earth.A.can one observe B.one can observe C.can observe one D.observe one can 为什么选A不选
应该选B
如果句首还有个only才倒装,选A
only +单词、词组、状语从句位于句首,句子进行部分倒装.
Only through education can we rise in the world.
倒装句式。情态动词/助动词/...+主语+动词+...所以选A
B
因为句子的后面部分是由when领衔的一个虚拟语气,意思是当火星靠近地球时(假设的情况),所以前面部分就应该是倒装句,can放在主语(one)的前面。