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汽水共腾时的处理是怎样的？

答案

参考答案：

1、适当降低锅炉蒸发量，并保持稳定。2、全开连续排污门，必要时，开启事故放水门或其它排污门，同时加强锅炉上水，防止水位过低。3、停止加药。4、维持汽包水位略低于正常水位（－50mm）。5、开启蒸汽管道疏水门，并通知汽机司机开启有关的疏水门。6、通知化学值班人员取样化验，采取措施改善炉水质量。7、在炉水质量来改善前，不允许增加锅炉负荷。8、故障消除后，应冲洗汽包水位计。

问答题

On 1 July 2006, for the purpose of buying a shipment of a wooden plate, Oriental Construction Materials Company (Oriental Company) sent a purchase order to Wooden Company which contained the terms and conditions of the wooden plate, including quantity, quality, way of payment and time of shipment. The purchase order also indicated that Wooden Company should reply within 10 days upon receipt of the purchase order.On 9 July 2006 Wooden Company sent back a fax and accepted all the terms and conditions of the purchase order, and added the price of the said wooden plate. The fax indicated that Oriental Company should give its final decision within three days upon receipt of the fax.On 11 July 2006 Oriental Company replied with a fax accepting the price forwarded by Wooden Company and demanded that a written letter of confirmation was required for finally concluding a contract.On 15 July 2006 Wooden Company despatched a written confirmation letter, via a DHL package, which contained all the terms and conditions for the sales of the wooden plate as agreed upon by the two parties. The written confirmation letter also provided that the liquidated damages amounting to 10% of the total price of the goods would be borne by the breaching party as the liability for breach of contract.Just during the period of the negotiations between the two parties, the market price of the wooden plate rose quickly. Oriental Company urged Wooden Company to deliver the goods according to the terms of the written confirmation letter, which it alleged to constitute an effective contract, without any delay. However, Wooden Company insisted there was no contract at all between the parties. Under such circumstances Oriental Company filed a law suit against Wooden Company in the local court.Required:Answer the following questions in accordance with the relevant provisions of the Contract Law of China and give your reasons for your answer:

(a) State the legal status of the purchase order of Oriental Company on 1 July 2006, the fax of Wooden Company on 1 July 2006 and the fax of Oriental Company on 11 July 2006. (6 marks)
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单项选择题

设某种电灯泡的寿命X服从正态分布N（μ，σ2），其中是未知的，现在随机的抽取4只这种灯泡，测得其寿命为1500，1455，1368，1649，是估计总体均值为（）

A、1500

B、1649

C、1493

D、1368
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