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【简答题】
It was a sunny Saturday afternoon in Oklahoma C ity . Bobby Louise was taking his two little boys to 1._______ golf .H e w al ked up to the man at the ticket counter and said, “ how 2._______ is it to get in? ” T he young man replied “ $3 for you and three dollars 3._____ any kids who is older than six . W e let them in free,4.______ th ey are six or younger . H ow old are they ? ” Bobby replied , “ Bob is three and John is se ven, so I guess I have 5.______ pay six dollars ” . The man at the ticket counter 6._______, “ H ey , M ister, did you just win the lottery or something ? Y ou could have saved yourself three dollars .Y ou could have told me that the older one was six ; I couldn ’ t have known the 7._______. ” Bobby replied , “ yes , that may be true , but the kids would have known the difference . ” 8._____ Ralph Wald o Emerson said , “ who you are speaks so loudly I can ’ t hear what you are saying . I n challenging times when ethics are more important 9.______ ever before , make sure you set a good 10.____________ for everyone you work and live with. A. handles F. to K. example B. though G. than L. which C. d ifference H. play M. Due to D. For I. said N. if E. as J. spreads O . much
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【判断题】中国进行股份制改造,就是分离国有企业的所有权和支配权。()
A.
正确
B.
错误
【单选题】已知图示电路中的US1,US2和I均为正值,则供出功率的电源是( )。
A.
电压源US1
B.
电压源US2
C.
电压源US1和US2
D.
不能确定
【简答题】已知图所示电路中,电阻R=2Ω时,电流I=4A。求R=5Ω时电流I。
【简答题】已知图所示电路中U=100V,求功率表的示数。
【简答题】4-3-8 ) 图 4.19 所示 电路中 N 为无源线性电阻网络,已知图 a 中 电压 , 电流 ,求 图 b 电路中电流 。
【单选题】“Rare chance” in the sentence “In the past, making a living took most of people's time, which gave them rare chance to go off on a trip” functions as ________
A.
subject
B.
predicate
C.
direct object
D.
indirect object
【简答题】(1)有人认为:“ARP协议向网络层提供了转换地址的服务,因此ARP应当属 于数据链路层。”这种说法为什么是错误的? (2)试解释为什么ARP高速缓存每存入—个项目就要设置10一20分钟的超时计时器。这个时间设置得太大或太小会出现什么问题? (3)至少举出两种不需要发送ARP请求分组的情况(即不需要请求将某个目的IP地址解析为相应的硬件地址)。
【简答题】 (1)有人认为:“ARP协议向网络层提供了转换地址的服务,因此ARP应当属于数据链路层。”这种说法为什么是错误的?(2)试解释为什么ARP高速缓存每存入一个项目就要设置10~20分钟的超时计时器。这个时间设置得太大或太小会出现什么问题?(3)至少举出两种不需要发送ARP请求分组的情况(即不需要请求将某个项目的IP地址解析为相应的硬件地址)。
【判断题】氯贝胆碱为苯烷胺类钙通道拮抗剂
A.
正确
B.
错误
【单选题】小郭第一次写的春联横批是什么?
A.
混过一年是一年
B.
放倒一个算一个
C.
鸡年过后是狗年
D.
恭喜发财
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