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Question Number 62534 by peter frank last updated on 22/Jun/19
Answered by tanmay last updated on 22/Jun/19
bimetalchangedtoashapeconcave..as⌣andtouchupper.pointtoactivateA...soAiscoolerandBisheater...ithinkso
Commented by peter frank last updated on 24/Jun/19
thankyou
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