It was with great courage _______ the boy told the truth ______ he had stolen the money.[ ]

A. that; that      

B. which; that      

C. when; what      

D. which; /

蒽油馏份中主要含有（）。

A.蒽菲、咔唑

B.联苯、蒽、苊

C.蒽、氧葱

D.蒽、萘