洗衣房常用去渍剂有哪些药水？
参考答案：
去笔迹药水、去果汁药水、去铁锈药水、去血迹药水等。
Nowadays, plastics _______ many other materials, and it is easily shaped. [ ]
A. has taken place of
B. has taken the place of
C. have taken place of
D. have taken the place of
简述变电站综合自动化系统的基本功能。
