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Passage 3 I watched from a distance as the homeless man quarreled with those who did not leave money for him – the majority. I walked up to him and right on queue he asked me for a quarter. “I’ll give you a quarter if you tell me your story.” He laughed, “You’ll give me a quarter for my story?” I lay the quarter in front of him and corrected myself – “Nah, here’s the quarter but it would be nice to hear your story.” I followed his eyes to the quarter and for a brief moment I saw a glimmer of reflection. I sat down next to him and waited. “I was in the army,” he said. “I was a sniper( 狙击手 )and was supposed to shoot down the enemy from the distance.” I listened carefully to his grizzly voice as he went deeper into the story. He wore dirty old torn clothes and smelled like a dead rat left in a mouse trap. He told me how he used to hunt with his family and was really good at it. He had his own way of respecting animals by not wasting what he killed for food and not killing more than he needed. When the army came knocking on his door, he felt proud and joined in. All those years of polishing his hunting skills could now serve a larger purpose—to defend us from the bad guys. He set out to fight in Iraq. It wasn’t long before he realized his ideals and expectations were just a shadow of the truth. He became disillusioned with the killings, which he felt were of innocent people. “I was a sniper but I never really killed anyone,” he said. “One day I had to do it. They asked me to shoot this lady from the distance. I saw kids near that lady and my hands were on the trigger ( 扳机 ). Man, I was tearing up ... I couldn’t do it. She wasn’t doing anything to anyone and she was with the kids—I couldn’t see through my tears. It just didn’t make any sense to me.” The story goes on as he describes eventually being put into prison for 180 days for refusing to follow orders. He told me how he was black listed so that he couldn’t get a job. All the rights we take for granted were taken away from him. Why? Here was a man who was being punished—and for what? For refusing to kill the lady? For being a hero? “I have no regrets,” the homeless man said. “I may be homeless now, but I never killed that lady. I never killed anyone in the army. It didn’t feel right. I didn’t go there to do that. I went there to save people.” He continued, “I can live with being homeless—that’s okay. But I wouldn’t be able to live with killing innocent people.” On that lonely Friday night, I met a hero. It just never occurred to me that a hero could be a smelly old man left on streets.
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参考答案:
举一反三
【判断题】函数y=f(x)可导 函数y=f(x)可微.(    )
A.
正确
B.
错误
【简答题】设y=f(x)是偶函数且其图像对称于直线x=a(a>0),证明f(x)是周期函数.
【单选题】已知y=f(x)是定义在R上的奇函数,则下列函数中为奇函数的是 ①y=f(|x|);②y=f(-x);③y=xf(x);④y=f(x)+x; [     ]
A.
①③
B.
②③
C.
①④
D.
②④
【单选题】凝汽式汽轮机的最大轴向推力通常出现在( )工况。
A.
零负荷
B.
中间负荷
C.
最小负荷
D.
最大负荷
【单选题】记账凭证账务处理程序相对来说
A.
简化了登记总账的工作量
B.
便于试算平衡
C.
不便于查对账目
D.
适用于经济业务量很少的单位
【简答题】设函数f(x)在(-∞,+∞)内有定义,下列函数(1)y=-|f(x)|;(2)y=xf(x 2 );(3)y=-f(-x);(4)y=f(x)-f(-x)中必为奇函数的有______(要求填写正确答案的序号).
【简答题】设函数y=f(x)(x∈R)对任意实数均满足f(x+y)=f(x)+f(y),求证f(x)是奇函数.
【单选题】已知函数y=f(x)是定义在R上的奇函数,则下列函数中是奇函数的是  (   ) ①y=f(|x|);②y=f(-x);③y=x·f(x);④y=f(x)+x. 
A.
①③
B.
②③
C.
①④
D.
②④
【单选题】关于对重度抑郁症病人的健康教育,正确的叙述是
A.
生活中回避压力,不要主动挑起对抗
B.
坚持服药治疗,不要漏服或随意停药
C.
建议患者进行自我心理调整为主,用药为辅
D.
尽量减少社会活动,避免受人关注
E.
励病人安静休息,避免声光刺激
【简答题】设函数f(x)在R上有定义,下列函数:①y=-|f(x)|;②y=|x|·f(x 2 );③y=-f(-x);④y=f(x)+f(-x)中是偶函数的有(    )。(写出所有正确的序号)
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