Which key technical innovation of the Great Leap Forward proved enormously ineffective?

steel plow

chemical plants

backyard furnace

educational system

Verified Answer :

Which key technical innovation of the Great Leap Forward proved enormously ineffective? 

A )steel plowB )chemical plantsC )backyard furnaceD )educational system
its backyard furnace

Answer:

It is B) backyard furnace

Explanation:

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