鉴于大家对英语英语考证PETS写作十分关注，我们编辑小组在此为大家搜集整理了“13年关于PETS4写作精选短语之看点”一文，供大家参考！
13年关于PETS4写作精选短语之看点
quality control
a system for insuring that a standard level of quality is maintained
Example:
Our quality control division was separate from our manufacturing department so it was more effective at finding and correcting product mistakes before the products were shipped to customers.