今日習題：
    1．漢譯英：“保函；信用證；許可證”，正確的翻譯為( )。
    A．1etter of credit；letter of guarantee；license
    B．1etter of guarantee；letter of credit；license
    C．1etter of guarantee；license；letter of credit
    D．1icense；letter of credit；letter of guarantee
    2．漢譯英：“純度；污點；厚度”，正確的翻譯為( )。
    A．purity；thickness；stain
    B．stain；purity；thickness
    C．purity；stain；thickness
    D．thickness；stain；purity
    3．英譯漢：“certificate of disinfection；certificate of fumigation”，正確的翻譯為( )。
    A．殘損鑒定證書；熏蒸證書
    B．消毒證書；熏蒸證書
    C．消毒證書；殘損鑒定證書
    D．熏蒸證書；消毒證書