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Arriving in Sydney on his own from India, my husband, Rashid, stayed in a hotel for a short time while looking for a house for me During the first week of his stay, he went and our children. out one day to do some shopping. He came back in the late afternoon to discover that his suitcase was gone. He was extremely worried as the suitcase had all his important papers, including his passport. He reported the case to the police and then sat there,lost and lonely in a strange city, thinking of the terrible troubles of getting all the paperwork organized again from a distant country while trying to settle down in a new one. Late in the evening, the phone rang. It was a stranger. He was trying to pronounce my husband's name and was asking him a lot of questions. Then he said they had found a pile of papers in their trash can(垃圾桶) that had been left out on the footpath. My husband rushed to their home to find a kind family holding all his papers and documents. Their young daughter had gone to the trash can and found a pile of unfamiliar papers. Her parents had carefully sorted them out, although they had found mainly foreign addresses on most of the documents. At last they had seen a half/x7fwritten letter in the pile in which my husband had given his new telephone number to a friend. That family not only restored the important documents to us that day but also restored our faith and trust in people. We still remember their kindness and often send a warm wish their way.
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集成式读写器
B.
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【单选题】根据读写器天线与读写器模块是否分离,读写器可以分为集成式读写器和分离式读写器,下图是哪种读写器( )。
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A.
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光源:氘灯
B.
接受元件:光电管
C.
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D.
光学系统:单光束,衍射光栅
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A.
集成式读写器
B.
分离式读写器
C.
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D.
可拆卸读写器
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A.
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B.
接受元件,光电管
C.
波长范围:200到800nm
D.
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A.
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B.
固定式RFID读写器
C.
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D.
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E.
信息采集系统
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A.
电子标签与读写器之间的通信
B.
读写器与计算机网络之间的通信
C.
防碰撞识别能力
D.
对电子标签能量的管理
E.
读写器的高度适应性
F.
控制应用软件
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