I have been searching for a painting to decorate my room, but ________ seems really difficult for me to

find ________ I like.     [ ]

A. that; one      

B. it; it              

C. that; it            

D. it; one

杜某提出工伤认定申请时，应提交( )。

A．工伤认定申请表

B．与用人单位存在劳动关系的证明材料

C．医疗诊断证明

D．发放工资证明