(题干同试题16)
Why haven’t beings from space visited us yet according to Shostak?
- A.They’re afraid of us.
- B.It’s a long way away.
- C.They don’t want to see us.
- D.They don’t know how to use radio signals.
答案
正确答案:B
知识点:细节理解题

由最后一段中“Have beings from space already visited Earth? ‘Probably not,’ says Shostak. ‘It’s a long way away…”可知答案选B。

略
