2. 专升本
  3. The price of aluminum was sharply reduced when people discovered a new refining process with the aid of ______. Aluminum is fou

The price of aluminum was sharply reduced when people discovered a new refining process with the aid of ______. Aluminum is fou

admin2009-08-21  102
问题 The price of aluminum was sharply reduced when people discovered a new refining process with the aid of ______.
Aluminum is found on earth mostly in the form of ______.
选项 A、pure metal
B、bauxite
C、gold
D、liquid
答案B
解析 本题为客观细节题。从最后一段“it is fortunate that bauxite(铝土矿)，which is one of its chief sources，is also one of the earth’s most plentiful substances”可知铝主要以铝土矿的形式存在。
转载请注明原文地址:https://www.kaotiyun.com/show/hfSC777K
本试题收录于： 英语题库成考专升本分类
0

英语

成考专升本

相关试题推荐
随机试题
最新回复(0)