Basic Knowledge of Boilers: [Daily Question] 2011.03.27

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Please hide your replies; be cautious when posting, as edits are invalid! Those with different views on the provided answer keys can post discussions the next day. For multiple accounts under the same IP, only the first response indicating participation is valid. All participants receive 2 points; this round consists of multiple-choice questions, with 5 points awarded for each correct answer. In principle, the top 50 respondents who answer within 24 hours will be scored. Please hide your replies; the method for doing so is: http://bbs.hcbbs.com/thread-492556-1-1.html. According to the \"Regulations on the Supervision and Management of Boiler and Pressure Vessel Manufacturing\", the validity period of the \"Manufacturing License\" is ( ). Manufacturing enterprises applying for a renewal must submit a written application for renewal to the safety supervision agency of the issuing authority before the expiration date of their Manufacturing License by ( ). Upon successful review, the issuing authority will issue a new Manufacturing License. a. 4 years b. 5 years c. 3 months d. 6 months Answer: A, D