-Do you know what it is in the picture? --It's a It was the earliest flight toolof human beings.A. computer B. robotC. balloon D. block 题目和参考答案——青夏教育精英家教网—

题目内容

( ) 1. —Do you know what it is in the picture?

——It's a It was the earliest flight tool(工具)of human beings.

A. computer B. robot

C. balloon D. block

l.C由答语中的后一句"它是人类最早的飞行工具"可知是气球。

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