Storage and Transportation Technology: [Daily Question] 11-05-10 [Tuesday]

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The arrangement of the immersed agitator on the side wall of the oil tank is ( ). (A) Concentrated within 1/4 of the tank wall circumference (B) Concentrated within 1/2 of the tank wall circumference (C) Distributed across 3/4 of the tank wall circumference (D) Evenly distributed along the tank wall circumference. Note: 1) Participants receive rewards (1-5 points) to encourage more detailed explanations. An additional reward of 1-5 points will be given if the specific source of the standard is indicated. 2) Please hide your replies; the method for doing this is: http://bbs.hcbbs.com/thread-492556-1-1.html. Replies that are not hidden will not be scored. 3) The answer will be visible immediately after responding; please do not edit your reply, as no score will be given if edits are made. P 4) Please indicate the question number when answering to avoid errors when assigning scores. Please also avoid submitting answers repeatedly in a malicious manner; if this is due to an error, contact the moderators or administrators. Otherwise, points will be deducted. 5) The top 50 participants will receive prizes, while no scoring will be given for posts beyond the 50th. 6) The default deadline for old posts is 0:00 the next day; no scoring is generally conducted after that time. u 7) All the questions I create are formulated based on relevant standards and experience. If there are any disputes regarding the answers, please post a separate discussion thread or contact the moderator via text message. A