【正确答案】：
HEMINGWAY DEALS WITH A LIMITED RANGE OF CHARACTERS IN QUITE SIMILAR CIRCUMSTANCES AND MEASURES THEM AGAINST AN UNVARYING CODE, KNOWN AS “GRACE UNDER PRESSURE”,WHICH IS ACTUALLY AN ATTITUDE TOWARDS LIFE THAT HEMINGWAY HAD BEEN TRYING TO DEMONSTRATE IN HIS WORKS.THOSE WHO SURVIVE IN THE PROCESS OF SEEKING TO MASTER THE CODE WITH THE HONESTY, THE DISCIPLINE, AND THE RESTRAINT ARE HEMINGWAY CODE HEROES.FOR HIM, THOUGH LIFE IS BUT A LOSING BATTLE, IT IS A STRUGGLE MAN CAN DOMINATE IN SUCH A WAY THAT LOSS BECOMES DIGNITY; MAN CAN BE PHYSICALLY DESTROYED BUT NEVER DEFEATED SPIRITUALLY.
【题目解析】：海明威在相似的环境中处理有限范围内的人物，并以不变的准则来衡量他们，这种准则被称为“压力下的优雅”，这实际上是海明威一直试图在他的作品中展示的一种生活态度。那些在以诚实、自律和克制来寻求掌握密码的过程中生存下来的人，就是海明威的密码英雄。对他来说，虽然人生只是一场注定要失败的战斗，但在这种斗争中，一个人可以主宰一切，使失去成为尊严；人可以肉体上被毁灭，但精神上永远不会被打败。