In order to get ________ better job of the two, he claimed that he could speak ________ second language, hoping it was ________ advantage over the other applicants.    [ ]

A. the; a; an      

B. a; a; the

C. the; the; 不填

D. a; the; an

防水材料破损部位应采用与防水层相同的材料进行修补，补丁边缘与破损部位边缘的距离不应小于50mm。