单选题 Visibly only through large telescopes, Pluto has a yellowish color, which indicates that there is very little atmosphere.
【正确答案】 A
【答案解析】答案：A 分析：副词visibly应改为形容词visible。 改正：visibly → visible 翻译参考：只有用大型望远镜才能看见的冥王星是黄色的，这表明它几乎没有大气层。