结构推理
请发过境外交签证

   ××字××号
   ××国大使馆：
   中华人民共和国大使馆向××国大使馆致意，并谨请大使馆发给中华人民共和国大使馆×等秘书××先生有效期为××天的过境外交签证。
   另请同时发给他免验证。
   顺致最崇高的敬意。
                                                                                        (使馆印)
   附件：第××号外交护照一本
【正确答案】To request granting of a diplomatic transit visa
   No.______
   The Embassy of the People's Republic of China presents its compliments to the Embassy of ______ and has the honor to request the Embassy to grant a diplomatic transit visa, valid for ______ day's stay, to Mr. ______ ,______ Secretary of the Embassy of the People's Republic of China. It is also required that a laissez-passer will issued to him. The Embassy of the People's Republic of China thanks the Embassy in advance for the assistance kindly rendered.
                                                                                      (Seal)
                                                                                       Place, date
   Enclosure: 1 diplomatic passport, No.______
【答案解析】