用单词的适当形式填空。

1.Li Ming is ______(come) to Canada.

2.______(do) you have a good trip yesterday?

3.These ______(be) bedrooms.

4.Let's ______(put) some dishes on the table.

5.He is ______(write)a letter.

6.She often ______(wash) dishes in the sink.

品质控制流程中，返修流程的目的是（）

A.提高返修工作效率，预防返修再次发生

B.降低客户抱怨程度，提高客户满意度

C.考核维修人员的修复成功率

D.提高维修工位的使用率