At the end of A Farewell to Arms, _____________. A: Frederic was accused to be a spy and shot to death B: Frederic and Catherine ran to Switzerland and lived a happy life there C: Frederic went back to the United States and married another woman D: Catherine died after giving birth to a stillborn baby in Switzerland

Which of the following journalists is not a foreign correspondent? A: Frederic Remington B: Joseph Pulitzer C: William Howard Russell D: Ernest Hemingway

群落演替和演替顶级理论是由以下哪位科学家提出的？ A: Charles Elton B: Ramond Lindeman C: Frederic Clements D: A.Tansley