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The young boy saw me, or rather, he saw the car and quickly ran up to me, eager to sell his Hunches (串) of bananas and bags of peanuts.Though he appeared to be about twelve, he seemed to have already known the bitterness of life.“Banana 300 naira.Peanuts 200 naira.” He said in a low voice.I bargained him down to 200 total for the fruit and nuts.When he agreed, I handed him a 500 naira bill.He didn’t have change, so I told him not to worry.He said thanks and smiled a row of perfect teeth. When, two weeks later, I saw the boy again, I was more aware of my position in a society where it’s not that uncommon to see a little boy who should be in school standing on the corner selling fruit in the burning sun.My parents had raised me to be aware of the advantage we had been afforded and the responsibility it brought to us. I pulled over and rolled down my window.He had a bunch of bananas and a bag of peanuts ready.I waved them away.“What’s up?” I asked him.“I … I don’t have money to buy books for school.” I reached into my pocket and handed him two fresh 500 naira bills. “Will this help?” I asked.He looked around nervously before taking the money.One thousand naira was a lot of money to someone whose family probably made about 5,000 naira or less each year. “Thank you, sir,” he said.“Thank you very much!” When driving home, I wondered if my little friend actually used the money for schoolbooks. What  if he’s a swindler (骗子)? And then I wondered why I did it.Did I do it to make myself feel better? Was I using him? Later, I realized that I didn’t know his name or the least bit about him, nor did I think to ask. Over the next six months, I was busy working in a news agency in northern Nigeria. Sometime after I returned, I went out for a drive.When I was about to pull over, the boy suddenly appeared by my window with a big smile ready on his face. “Oh, gosh! Long time.”  “Are you in school now?” I asked. He nodded. “That’s good,” I said.A silence fell as we looked at each other, and then I realized what he wanted.“Here,” I held out a 500 naira bill.“Take this.” He shook his head and stepped back as if hurt.“What’s wrong?” I asked.“It’s a gift.” He shook his head again and brought his hand from behind his back.His face shone with sweat.He dropped a bunch of bananas and a bag of peanuts in the front seat before he said, “I’ve been waiting to give these to you.” 小题1:What was the author’s first impression of the boy? A.He seemed to be poor and greedy. B.He seemed to have suffered a lot. C.He seemed younger than his age D.He seemed good at bargaining. 小题2:The second time the author met the boy, the boy _____. A.told him his purpose of selling fruit and nuts B.wanted to express his thanks C.asked him for money for his schoolbooks D.tried to take advantage of him 小题3:Why did the author give his money to the boy? A.Because he had enough money to do that. B.Because he had learnt to help others since childhood. C.Because he held a higher position in the society. D.Because he had been asked by the news agency to do so. 小题4:Which of the following best describes the boy? A.Brave and polite. B.Kind and smart. C.Honest and thankful. D.Shy and nervous.
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举一反三
【多选题】电子商务面临的安全威胁有哪些?
A.
信息的截获和窃取
B.
信息篡改
C.
假冒他人身份
D.
抵赖行为
【单选题】关于抗原和抗体的关系,不正确的叙述是(  )
A.
抗原是外来物质,抗体是人体蛋白
B.
抗原消失后,抗体便不再存在
C.
抗体是在有抗原物质的刺激下才产生的
D.
一种抗体只能结合一定的抗原
【判断题】梁在纯弯曲时,横截面上最大正应力发生在梁的中性轴上各点处。
A.
正确
B.
错误
【简答题】电子商务面临的安全问题都有哪些?
【简答题】横力弯曲时,对称于中性轴截面梁上的最大正应力发生在( ) 处,梁截面上的最大切应力发生在( ) 处。矩形截面的最大切应力是平均切应力的( ) 倍。
【单选题】关于抗原正确的是
A.
能刺激机体产生多种抗原
B.
有免疫反应性
C.
有免疫原性和免疫反应性
D.
分子量>1kDa
E.
作用无特异性
【判断题】梁在横力弯曲时,横截面上的最大切应力不一定发生在截面的中性轴上。
A.
正确
B.
错误
【多选题】电子商务面临的安全威胁有:
A.
信息泄密
B.
信息被篡改
C.
无法确认身份
D.
信息破坏
E.
抵赖行为
【多选题】电子商务面临的安全威胁有
A.
病毒
B.
恶意破坏程序
C.
攻击
D.
数据阻截
E.
垃圾信件
【多选题】电子商务面临的安全威胁有哪些?
A.
病毒的安全威胁、恶意破坏程序的安全威胁
B.
攻击的安全威胁、数据阻截的安全威胁
C.
垃圾信件的安全威胁、数据库的安全威胁
D.
人为破坏的 安全威胁、信息泄露的安全威胁
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