问答题 我一出口公司于6月27日应荷兰某商号的请求，报出C514某初级产品200公吨，每公吨人民币1950元CIF鹿特丹，即期装运的发盘，但对方对我方发盘未作还盘，而一再请求我方增加数量，降低价格，并延长有效期。最后，荷兰商号接受我方发盘时，我方才发现因巴西受灾使该产品的产量受到影响，国际市场价格猛涨。通过分析下述双方的往来函电，讨论从本案中应该吸取的教训。
   (1) 6.27 OUT：YOURS 26 OFFER SUBIECT REPLY IMMEDIATELY COMMODITY C514 200 MT RMBI，950 CIF ROTTERDAM IRREVOCABLEOPTION ON THIS PARCEL UNTIL TODAY 25TH JULY THEREFORE WE INSIST ON YOUR ACCEPTANCE OF OUR ORDER STOP WITHDRWAL OFFIRM OPTION CONTRARY TO INTERNATIONAL BUSINESS RULE STOPIF  SOME  SMALL  PRICE  INCREASE  IS  REQUIRED  WE  TRYRENEGOTIATE   WITH   CUSTOMERS   HOWEVER   WE   CANNOTGUARANTEE RESULTS STOP EXPECTING YOUR CABLE BY RETURN
    (11)  7. 29  OUT:   YC25   300   MT  OF  COMMODITY   C514   FORMERLY OFFERED  REALLY  SOLD  APOLOGIZING  MUCH   BUT  IN   SUIT   YOURREQUEST   WE   ENDEAVOUR   MUCH    IN   SECURING   200    MT   FROMSUPPLYING SOURCE AND NOW  MAKE  YOU  AN  OFFER  ON  200  MT  OFC514   AT  RMB2,650/MT  CANDF  EMP  SHIPMENT  SEPTEMBER  VALIDSUBJECT REPLY HERE 31/7
    (12)  7.30  COME: YC29     COMMODITY      C514       REGRETABLE COMPELLED  RESERVE   OUR   RIGHTS   ON   ARBITRATION   THROUGHFOREIGN  TRADE  ARBITRATION  COMMISSION  CHINA  COUNCIL  FORPROMOTION   INTERNATIONAL  TRADE  AND  POSSIBLY   ALSOTHROUGH NETHERLANDS COMMODITY TRADE ASSOCIATION FORTECHNICAL  ARBITRATIONS  OR  OTHER  APPRECIATE  AUTHORIZEDORGANIZATION STOP MUST INSIST OPEN EXECUTION CONTRACT ASPER  OUR  TIMELY  ACCEPTANCE  OF  YOUR  OFFER  VIDE  OUR  CABLE22/7 STOP COOPERATING WE CAN AGREE SHIPMENT 300 MT AUGUSTSEPTEMBER INSTEAD PROMPT SHIPMENT AS CONTRACTED FAILINGWHICH      CLAIMING      RMB232,950      BECAUSE      ACCORDING      YOURINDICATION VALUE NOW RMB2,650  CANDF WHERE AS CONTRACTEDPRICE RMB1,900 CIF
    (13)  8.2   OUT:    REGARDING   OFFER   300   MT   COMMODITY   C514 WHAT WE  PROLONGED  IN  OC17  TIll 25/7  IS  WE  AGREE  PROLONGTHE  DURATION   OF   THE   OFFER   AND   NOTHING   WAS   SAID   SUCHBEING FIRM OFFER NOR IN ANY OUR PREVIOUS CABLE MENTIONINGSUCH BEING FIRM OFFER STOP AS OUR OLD CUSTOMER YOUSHOULD KNOW  THAT OFFERS SUBJECT  OUR  FINAL  CONFIRMATIONIS OUR USUAL PRACTICE STOP CONSIDERING OUR PAST ANDFUTURE FRIENDLY  TRADE  RELATIONS  WE  DID  MAKE  YOU  ON  29/7FROM  OUR  NEW  SUPPI.Y  AN  OFFER  OF  200  MT  AT  RMB2, 650  BUTASTONISHED  TO  LEARN  FROM  YC30  RAISING  QUESTION  OF ARBITRATION  STOP  AFTER  FURTHER  RECONSIDERATION  WEPREPARE OUOTE YOU PREFERENTIAL PRICE ON THIS NEW OFFER200 MT STOP PLEASE CABLE YOUR FRIENDLY OPTION THANKS
   (14) 8.7 COME：YC2/8 C514 REGRET DISAGREE Y()UR VIEW AND REASONING BECAUSE WE REPLIED WITHIN TIMELY STOP WE HAVEYOUR OFFER FOR REPLY TILL 25/7 AND REPLIED TIMELY ON 22/7 ASRECOGNIZED BY YOU STOP AWFULLY SORRY  HAVE TO CLAIMCORRECT EXECUTION OF CONTRACT
   (15) 8.9 COME：C514 OC4/8 MISSlNG YOUR REPLY RUSH
   (16) 8.12  OUT：  YC7  CONSLDERING  OUR  FRIENDLY  TRADING RELATIONS WE DECIDE SELLlNG YOU 300 MT C514 AT RMBl，900/MTCIF  ROTTERDAM  OF  WHICH  200  MT  SHIPMENT  SEPTEMIBERREMAINING 100 MT SHIPMENT OCTOBER STOP PACKING SINGLEGUNNY BAG 75 KILOS NET PER BAG MARKING SELLERS OPTIONPAYMENT IRREVOCABLE LC SIGHT DRAFT
   (17) 8.13 COME：YCl2 ACCEPTANCE YOUR DECISION