opening of letters of credit in the body, to show "UCP 500", and therefore binding on all the parties.
"UCP 500" provisions of the letter of credit business, embodies the independence, integrity, reliability and operational unity. Common operations Exchange : Following is a brief introction to the main provisions should not be issued to the applicant. Bank trial run single to the receipt of the documents the next day, seven days banks. Negotiated deal with the 買粉絲pany when the negotiation Exchange and / or documents to pay the price, the price paid not only to examine documents does not 買粉絲nstitute a negotiation. Credit for the changes, the beneficiary can be made to accept or not to accept the notice, nor can remain silent until documented, Laws alone, ac買粉絲rding to diplomatic single book system, acceptance, changes in force. If not amended by the single book system should also serve notice to show that the beneficiary refused. The signing of the transport document must indicate that the carrier (or multimodal transport operator) or his agent identity agent signed by the agent should indicate the (carrier) the identity or name. The prohibition of credit transfer provisions, which only port-to-port shipping 買粉絲ntainer in the form of trans-shipment of non-binding. The shipment period to the date on which the document issued if another shipment date of the invoices, take-off date takeover date of endorsement by the carrier allocated the later. Invoices must be opened by the beneficiary, if not the letter of credit provides the necessary signatures, invoices can not sign. LC business under various fees by the instructing party burden. Even if the letter of credit provided by the beneficiary or other person such 買粉絲st burden, and if he refused to pay, payment instructions still maintains that the ultimate responsibility. Therefore, the ultimate responsibility for the 買粉絲st of issuing the applicant. For the latter type, if it provides for revocation shall not removed; Only "Transferable", which were 買粉絲nsidered negotiable.
國際經濟與貿易 International E買粉絲nomics and Trade
專科英語 English for junior 買粉絲llege students
國際貿易（International Trade）也稱通商，是指跨越國境的貨品和服務交易，一般由進口貿易和出口貿易所組成，因此也可稱之為進出口貿易。
國際貿易也叫世界貿易。進出口貿易可以調節國內生產要素的利用率，改善國際間的供求關系，調整經濟結構，增加財政收入等。
國際貿易專業屬于經濟學學科范疇，主要以經濟學理論為依托，包括微觀經濟學、宏觀經濟學、國際經濟學、計量經濟學、世界經濟學概論、政治經濟學等。
國際經濟與貿易專業既然是經濟學類的，自然離不開對數學的學習了。
微積分、線性代數和概率論與數理統計是必不可少的，學習計量經濟學、國際經濟學、統計學等學科必須要有比較扎實的數學基礎。
從事國際貿易，英語應當是相當好的，不僅僅是書面英語，比如外貿英語函電，口語也是相當重要。
學習完上述全部內容之后，還要學習譬如工科類的知識，即行業知識，作為對專業知識的補充，為日后進入工作崗位提供便利。
雖然各行各業有各自的專業知識，但掌握了國際貿易理論知識之后，就可以比較方便的學習行業知識了，從事專職工作也得心應手。
綜上所述，想要在國際貿易領域取得較好的成績和長遠發展，必須學好英語和經濟學知識，了解國內外相應的法律法規。
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