题目内容

“Use the sound of a dog barking instead of a real dog as a burglar alarm”utilizes () of 40 invented principles.

A. Extraction
B. Feedback
Continuity of useful action
D. Beforehand cushioning

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“Russian nesting doll”utilizes () of 40 invented principles

A. Local Quality
B. Nested Doll
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D. Continuity of useful action

“The treadmill”utilizes () of 40 invented principles

A. Prior action
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“Use brackets to carry hot plates to the table”utilizes () of 40 invented principles

A. Intermediary
B. Segmentation
C. Beforehand cushioning
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At present,______ has become an important support and advanced tool for TRIZ.