Social Sciences. In short, a two-mode is a hybrid vehicle that can operate in two distinct ways (modes). The first mode works much like a regular full hybrid. It is the second mode that makes the difference--where the hybrid system can adjust varying amounts of engine and motor function to meet very specific vehicle/task/traffic requirements.
Twain's first book, The Innocents Abroad, was published in 1869, The Adventures of Tom Sawyer in 1876, and The Adventures of Huckleberry Finn in 1885. He wrote 28 books and numerous short stories, letters and sketches. Mark Twain passed away on April 21, 1910, but has a following still today.
Mark Twain-Mini Biography (TV-14; 3:19) Hannibal, Missouri native Samuel Clemens, aka Mark Twain, was one of the premier writers of late 19th century America. He based his fictional works The Adventures of Tom Sawyer and Adventures of Huckleberry Finn on his hometown.