电脑偷走维生素A

　　连续对着电脑工作3小时以上，视神经细胞就会缺乏营养，特别是缺乏维生素A，因为它与视网膜感光直接相关。如果儿童看电视或看书时间过长，体内维生素A也会被大量消耗。

　　专家忠告：服用复合维生素，既能补充失去的维生素A，又可提供在维生素A缺乏时可转换为维生素A的β－胡萝卜素，以及维生素B、维生素D等其他与视神经健康相关的维生素。

　　酒精偷走维生素B1

　　酒精要在体内正常代谢，必须有足量的维生素B1参与，因此大量饮酒会造成体内维生素B1供应不足。若不及时补充，将增大酒精对肝脏和脑神经的危害。长期缺乏甚至导致心脏病变，危及生命。

　　专家忠告：大量饮酒后服用1片复合维生素，既能补充损失掉的维生素B1,还能提供维护肝脏和脑神经健康所需的其他多种维生素。

　　避孕药偷走维生素B6

　　避孕药中含有的雌激素会增加肝脏色氨酸的代谢，而维生素B6是色氨酸代谢中的一种辅酶成分，因此，每日口服避孕药的女性常出现维生素B6缺乏导致的忧郁、悲观、易激动等症状。

　　专家忠告：经常在早餐中摄入燕麦，因为维生素B6在谷物的外皮中含量最为丰富。

　　香烟偷走维生素C

　　烟雾中的焦油等有害成分会大量耗损维生素C。据统计，每吸一支烟约消耗掉体内储存的25毫克维生素C，如果是被动吸烟者，维生素C的损耗量更大，甚至可能高达50毫克。

　　专家忠告：有抽烟习惯的人日常应多吃含维生素C丰富的食物。如果是长期处于烟雾中的被动吸烟者，则最好每天服用50毫克维生素C补充剂来自我保护，但不要用热水送服，因为维生素C遇热后易还原失效。

　　咖啡偷走钙

　　咖啡因会溶解骨骼里的钙。据测定，每天所喝的咖啡超过两杯后，每多喝一杯将造成8毫克骨钙流失，增大患骨质疏松的危险。

　　专家忠告：多吃豆类等含钙丰富的食物，或者在每次喝咖啡时用鲜奶代替咖啡伴侣，也可以适量补充钙片。

　　抗生素偷走正常菌群

　　抗生素在杀死致病菌的过程中，也会杀死体内一些对健康有益的细菌，尤其是消化道和泌尿系统的正常菌群，造成胃肠道内菌群失调。

　　专家忠告：在服用抗生素期间每天喝1杯酸奶。因为酸奶中含有的双歧杆菌是人胃肠道中原有的非致病菌，不仅可减轻抗生素的副作用，还能促进食物消化。（康健）

　　

进出口英语全套书信
--------------------------------------------------------------------------------
    1. 主动联系采购商
    Dear Sirs: May 1, 2001
    Inquiries regarding our new product, the Deer Mountain Bike, have been coming in from all parts of the world. Reports from users confirm what we knew before it was put on the market - that it is the best mountain bike available. Enclosed is our brochure.
    Yours faithfully
    2. 提出询价
    Dear Sirs: Jun.1, 2001
    We received your promotional letter and brochure today. We believe that your would do well here in the U.S.A. Kindly send us further details of your prices and terms of sale. We ask you to make every effort to quote at competitive prices in order to secure our business. We look forward to hearing from you soon..
    Truly
    3. 迅速提供报价
    Gentlemen: June 4, 2001
    Thank you for your inquiry of June the 1st concerning the Deer Mountain Bike. It gives us great pleasure to send along the technical information on the model together with the catalog and price list. After studying the prices and terms of trade, you will understand why we are working to capacity to meet the demand. We look forward to the opportunity of being of service of you.
    交易的契机 4. 如何讨价还价
    Gentlemen: June 8, 2001
    We have received your price lists and have studied it carefully. However, the price level in your quotation is too high for this market, If you are prepared to grant us a discount of 10% for a quantity of 200, we would agree to your offer. You should note that some price cut will justify itself by an increase in business. We hope to hear from you soon.
    Yours truly
    5-1 同意进口商的还价
    Dear Sirs: June 12, 2001
    Thank you for your letter of June the 8th. We have accepted your offer on the terms suggested. Enclosed our will find a special price list that we believe will meet your ideas of prices. You should note that the recent advances in raw materials have affected the cost of this product unfavorably. However, for your order we have kept our prices down.
    Sincerely
    5-2 拒绝进口商的还价
    Dear Sirs: June 12, 2001
    Thank you for your letter of June the 8th. We regret that we cannot meet your terms. We must point out that the falling market here leaves us little or no margin of profit. We must ask you for a keener price in respect to future orders. At present the best discount offered for a quantity of 200 is 5%. Our current situation leaves us little room to bargain. We hope you will reconsider the offer.
    Truly
    6. 正式提出订单
    Gentlemen: June 15, 2001
    We have discussed your offer of 5% and accept it on the terms quoted. We are prepared to give your product a trial, provided you can guarantee delivery on or before the 20th of September. The enclosed order is given strictly on this condition. We reserve the right of refusal of delivery and/or cancellation of the order after this date.
    Truly
    7. 确认订单
    Gentlemen: June 20, 2001
    Thank you very much for your order of June 15 for 200 Deer Mountain Bikes. We will make every possible effort to speed up delivery. We will advise you of the date of dispatch. We are at your service at all times.
    Sincerely
    8. 请求开立信用证
    Gentlemen: June 18, 2001
    Thank you for your order No. 599. In order to execute it, please open an irrevocable L/C for the amount of US$ 50,000 in our favor. This account shall be available until Sep. 20. Upon arrival of the L/C we will pack and ship the order as requested.
    Sincerely
    9. 通知已开立信用证
    Dear Sirs: June 24, 2001
    Thank you for your letter of June 18 enclosing details of your terms. According to your request for opening an irrevocable L/C, we have instructed the Beijing City Commercial Bank to open a credit for US$ 50,000 in your favor, valid until Sep. 20. Please advise us by fax when the order has been executed.
    Sincerely
    10. 请求信用证延期
    Gentlemen： Sep. 1, 2001
    We are sorry to report that in spite of our effort, we are unable to guarantee shipment by the agreed date due to a strike at our factory. We are afraid that your L/C will be expire before shipment. Therefore, please explain our situation to your customers and secure their consent to extend the L/C to Sept.30.
    Sincerely
    11. 同意更改信用证
    Gentlemen: Sept. 5, 2001
    We received your letter today and have informed our customers of your situation. As requested, we have instructed the Beijing City Commercial Bank to extend the L/C up to and including September 30. Please keep us abreast of any new development.
    Sincerely

心里不是滋味，不知如何表达。我烧了鱼片，豆腐。肉肠不错。

 

嘿嘿。

Vista部落FTP下载：ftp://Vista:Vista@92ff.com/Longhorn.Beta.1/longhorn_beta1_dvd.iso

气温较低。很冷。