多选题As an active participant in all the major events of his time, Mark Twain the person exemplified the adventurous, romantic, patriotic and humorous traits in the American character. （ ）多选题Mark Twain was a jack-of-all-trades in the sense that he did diverse jobs during his life time, ranging from journeyman printer, riverboat pilot, confederate guerrilla and occasional gold-miner to journalist, lecturer and writer. （ ）多选题The Westward Expansion contributed much to the promotion of the Native American cultures. （ ）多选题Twain’s travel writings, particularly The Innocents Abroad (1869), artfully combined wit and serious information which became his trademark. （ ）多选题Mark Twain joined the Union Army during the American Civil War. （ ）多选题Mark Twain is widely recognized as the most renowned American humorist. （ ）多选题The rhetorical device of antithesis conveys a sense of complexity by presenting opposite or nearly opposite truths in parallel structures. （ ）多选题The culture clash between the East and the West in the United States was not a topic of concern to Mark Twain. （ ）多选题William Faulkner proclaimed that Earnest Hemingway was “the father of American literature”. （ ）多选题Mark Twain remained optimistic and adventurous throughout his life. （ ）