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.
Cover of the first British edition, published by Chatto & Windus, 1884. The American first edition would not appear until February of the next year. Twain had to settle for publishing a few chapters of Huckleberry Finn in the December 1884 and January 1885 Century Magazine. The 174 illustrations and the cover design for Huckleberry Finn were by E. W. Kemble, a 23-year-old magazine artist selected by Twain.