2. 外语
  3. Pure feldspar is a colorless, transparent mineral, but impurities commonly make it opaque and colorful.

Pure feldspar is a colorless, transparent mineral, but impurities commonly make it opaque and colorful.

admin2012-07-30  30
问题 Pure feldspar is a colorless, transparent mineral, but impurities commonly make it opaque and colorful.
选项 A、truly
B、rapidly
C、periodically
D、frequently
答案D
解析 通常地
转载请注明原文地址:https://kaotiyun.com/show/vZGd777K
本试题收录于： 职称英语综合类C级题库职称英语分类
0

职称英语综合类C级

职称英语

相关试题推荐
随机试题
最新回复(0)