标签：Dialo - 华人论坛

在加拿大 Fundamental Spanish(with Dialogs) Welcome! Here are 100 of the most common nouns and verbs in the Spanish language. You will learn to read and speak using these words, sample sentences and practice dialogs. SECCIN I /section IVerbos y sustan...华人论坛

在加拿大 Dialog是世界上历史最悠久且资讯最完整的在线检索公司，也是我国科技界广泛使用的系统。自1972年开始建立第一个商用资料库，期间陆续与多个著名在线检索系统整合, 使Dialog旗下扩充...华人论坛