PDCA循环是全面质量管理的科学方法，可用于企业各个方面、各个环节的质量管理活动。
参考答案：对
看图写单词。
1. Look, they're Nancy's ____________ , Jack's ____________ , Amy's
____________ and Mike's ____________ , Where are my ____________ ?
2. It's ____________ today. I can wear my new ____________ . I can
____________ , too.
液体润滑的作用有哪些？
, Jack's ____________ 
, Amy's 
and Mike's ____________ 
, Where are my ____________ 
?
today. I can wear my new ____________ 
. I can
, too.