Answer the questions below.Choose NO MORE THAN THREE WORDS AND/OR A NUMBER from

游客2024-01-08  9

问题 Answer the questions below.
Choose NO MORE THAN THREE WORDS AND/OR A NUMBER from the passage for each answer.
Write your answers in boxes 18-20 on your answer sheet. [br] What kind of signals from other intelligent civilisations are SETI scientists searching for?

选项

答案 radio (waves/signals)

解析
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