Since 1971 the Canadian government has adopted a policy of ________, recognizing that cultural pluralism within a bilingual framework is the essence of the Canadian identity.

英语翻译：articles of association

严复翻译的《天演论》 ，其原文的题目是（）

—David has made great progress recently. — _______，and _______.

“The dignity of movement of an iceberg is due to only one- eighth of it being above water. ” This “iceberg ” analogy is put forward by( ).