题目

短文填空，根据上下文意思填入所缺单词。    The word “encyclopaedia” comes from Greek. It __1___(mean) “general education”. An encyclopaedia is _2__ kind of reference book(参考书) and it contains the information from either all branches of knowledge ___3__ a special branch of knowledge. People ___4___(begin) to use it about 2,000 years ago. The __5___(old) one is Naturalis Historiaand. __6__ was written by Pliny the Elder. The modern encyclopaedias developed from dictionaries around the 17th century. Some encyclopaedias are made up __7___ only one volume(下列示意图表示的地理现象中，与该实验原理相同的是（　　） A、B、C、D、