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Q The efficiency of chimney is approximately______________?
  • A A. 80%
  • B B. 40%
  • C C. 20%
  • D D. 0.25%
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Word of the Day
12 Jul
Obdurate
stubbornly refusing to change one’s opinion or course of action.
آدی، بدکار، Ψ³Ω†Ϊ―Ψ―Ω„ΫŒ

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