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【简答题】
My daughter Julie and I went shopping this morning. A little part of me thought about going to another checkout line. This one had the shortest queue, there was only one guy in it, but he was in a __ __ __ and there seemed to be some complications going on. Well, I stamped on that little part, and we stepped in ___ _ ___him. At first, he seemed to be having __ __ _ getting his groceries onto the conveyor belt(输送带). But after a while, I _ __ __ that what he was actually doing was dividing them into two lots. Still, getting the stuff up there was no___ ___ _ task in itself. I __ _ _to help, but he and the checkout lady had it under__ _ __. He asked Julie if she would ____ __ putting his empty basket away. Then he _ ___ __for his wallet which was in a pouch(小袋子)on one side of his chair. The way he was positioned and the fact he only had one usable__ ___ _ made this quite a stretch for him, so I helped there. What must it be like, I ____ ___ _, to be so dependent on other people like that? The checkout operator came around and gave him his __ ____ _ and the items he needed to have to hand. I offered to get __ ____ __bigger bag and he said, “ No. but you could do me a favor. Take that lot along to the entrance and give it to Angela.” I ___ __ did that, leaving Julie with our shopping. Angela, it turned out, was collecting food for people who might otherwise go __ _! I hadn’t even noticed her before. This guy, despite the limitation that his __ ____ __condition imposed(强加于) on him, had bought more than twice as much shopping as he needed. He may have been ___ ___ ___ physically, but his heart was more than capable of __ ___ ___ all that. And it changed my idea of __ ____ _ when I realized that the help he had given was ___ ____ _ the help he had received. 小题1: A.taxi B.wheelchair C.grocery D.bench 小题2: A.before B.behind C.near D.beyond 小题3: A.difficulty B.potential C.doubt D.ability 小题4: A.regretted B.recognized C.requested D.realized 小题5: A.special B.obvious C.easy D.necessary 小题6: A.struggled B.offered C.forced D.preferred 小题7: A.control B.consideration C.repair D.attack 小题8: A.mind B.finish C.enjoy D.escape 小题9: A.hoped B.chose C.reached D.begged 小题10: A.leg B.knee C.foot D.arm 小题11: A.warned B.wondered C.feared D.insisted 小题12: A.change B.bill C.note D.coin 小题13: A.more B.another C.other D.the other 小题14: A.desperately B.faithfully C.sadly D.Gratefully 小题15: A.thirsty B.tired C.hungry D.crazy 小题16: A.mental B.natural C.official D.physical 小题17: A.admired B.limited C.forgotten D.accepted 小题18: A.overcoming B.keeping C.passing D.destroying 小题19: A.pride B.patience C.dependence D.bravery 小题20: A.other than B.more than C.less than D.rather than
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参考答案:
举一反三
【判断题】差分方程能够确定系统是否是因果、线性、时不变特性。()
A.
正确
B.
错误
【单选题】判断下述系统是否是线性、时不变、因果、稳定性,其中 x(n) 和 y(n) 分别表示系统的输入和输出。
A.
该系统是线性、时变、非因果、稳定 的系统
B.
该系统是线性、时不变、因果、稳定 的系统
C.
该系统是非线性、时不变、因果、稳定的系统
D.
该系统是线性、时变、因果、稳定 的系统
【简答题】已知系统的输入和输出关系如下,判断各系统是否是线性的、时不变的、因果的、稳定的? 当输入为冲激函数δ(t)时的零状态响应。
【多选题】URL 的一般顺序是 __________
A.
web 服务器的主机名
B.
端口号
C.
资源名
D.
网络协议
E.
资源路径
【简答题】已知系统的输入和输出关系如下,判断各系统是否是线性的、时不变的、因果的、稳定的?
【单选题】网络协议是Internet上计算机之间通信所必须遵循的_______。
A.
连接方式
B.
规则和约定
C.
传输方式
D.
地址格式
【判断题】确定一阶前向差分系统 是否为线性、非时变、因果系统
A.
正确
B.
错误
【单选题】网络协议是_____。
A.
网络通迅信息双方鉴定的法律文书
B.
为网络数据交换而制定的规则、约定与标准的集合
C.
用户与网络工程施工方的法律合同
D.
互联网上传送的所有信息
【简答题】什么是网络协议?网络协议在网络中的作用是什么?
【判断题】确定一阶后向差分系统 是否为线性、非时变、因果系统。
A.
正确
B.
错误
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