Translate the following sentence into English.
二十世纪被称为巨变的时代，而二十一世纪被称为信息时代。(refer)
【正确答案】：
THE 20TH CENTURY  IS REFERRED TO AS THE DRASTIC CHANGE, WHILE THE 21ST CENTURY AS THE AGE OF INFORMATION.
【题目解析】：
考点：本题考查省略句，前后谓语一致的可以省略；被称为be called as／be referred to；巨变drastic change；信息时代the age of information。