助学贷款主要有（）。

A.国家助学贷款

B.生源地信用助学贷款

C.高校利用国家财政资金对学生办理的无息借款

D.一般性商业助学贷款。

When was the United States transformed into a truly industrial country().

A.In the twentieth century.

B.At the turn of the last century.

C.During the Civil War.

D.Between the end of the Civil War and the mm of the 20th century.