（ ） contribution to American literature is that he made colloquial speech an accepted standard literature medium.
A.Henry James’ B.Mark Twain’s C.Dreiser’s D.Howells'正确答案B
（ ） contribution to American literature is that he made colloquial speech an accepted standard literature medium.
A.Henry James’ B.Mark Twain’s C.Dreiser’s D.Howells'正确答案B
