参考答案：D

解析：

[分析]： 事实细节的找寻和判断。 根据原文It is only written Arabic (that is，the Classical Arabic of the Koran and the Modern Arabic of．．．)可知选项B和C是正确的；根据Written Arabic is，paradoxically，spoken too：on the radio and television，in public speeches，as well as between Arabs from different countries．We could call it pan-Arabic即阿拉伯书面语同样运用在广播、电视和公共场合的演讲中，不同国家的阿拉伯人也使用它。我们将这种语言称为泛阿拉伯语，由此可见 A项是正确的；根据this difference is far less than that between the artificial pan-Arabic and the living colloquial language of any Arab country即(英文)书面语和口语的区别比泛阿拉伯语和阿拉伯口语之间的区别小得多，由此可推测，阿拉伯书面语和口语是不一样的。因此D项是正确的。[解题关键] 理解比较结构，掌握far less than的含义。