(单选题)
Which can be the best title of this passage? ( )
A.Scientists Calculated Paths of Voyager Space-crafts to an Outer System.
B.Scientists
C.lculated the timeline of When Voyager 1 and 2 Escape the Earth.
C. Scientists Calculated How Long It’ll Take to Reach
D.stant Stars.
D. Four Space-crafts Will Come Within Striking Distance of Approximately 60 Stars to an Outer System.
参考答案:C
参考解析:
文章首段描述背景信息,第二段提出问题But how long might it take them, or another spacecraft, to actually reach another star system?后面段落围绕该话题展开。选项ABD均为文中细节内容,只有C项是对主旨段落的同义替换。故本题正确答案选C。
知识点:主旨题 英语 阅读理解 通用 英语
