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

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

A.freed

B.be freed

C.freedom

D.fresh

请帮忙给出正确答案和分析,谢谢!

热搜:关于氨基酸代谢错误的论述是_________。