Robots have ______ humans from heavy work and offer us much more free time.A、fre

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问题 Robots have ______ humans from heavy work and offer us much more free time.

选项 A、freed
B、be freed
C、freedom
D、fresh

答案 A

解析 free from"使……从……中解放出来；无……的"，符合题意，是及物动词，不用被动语态；freedom of"自由(权)"；fresh from"刚从……回来"。

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