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七选五: You may think that English dict ionaries have been used for many,many centuries.The spelling of English has always been a problem. 1 Then people could spell words in different ways which you might find interesting.But it made reading English much more difficult.So dictionaries were invented to encourage everybody to spell the same.In fact,an English dictionary like the kind you use today wasn’t made until the time of the late Qing dyn asty. 2 They are Samuel Johnson,Noah Webster,and James Murray.These men spent nearly all of their lives trying to collect words for their dictionaries.For them,it was not only a job,but it was a wonderful journey of discovery.The largest dictionary in the world is the Oxford English Dictionary,or OED for short. _____ 3 ____At the age of fourteen,he left his village school in Scotland and taught himself while working in a bank.Later he became a great teacher.After Oxford gave him the job,Murray had a small house built in the garden behind his house to do his work.Part of it was one meter underground. 4 He had to wear a heavy coat and put his feet in a box to keep warm.Every morning,Murray got out of bed at five o’clock and worked several hours before breakfast. 5 Murray hoped to finish the new dictionary in ten years.But after five years,he was still adding words for the letter A! Forty-four years later,in 1928,other editors finished the dictionary. A.In winter it felt like a barn. B.Murray had never been to college. C.He worked on the dictionary until he was very old. D.Often he would work by candle light into the evening. E.But it was more of a problem in the days before a dictionary. F.Three men did most of the important early work on dictionaries. G.The idea of this dictionary came from an important meeting in Britain in 1857.
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举一反三
【单选题】加装燃油时,如发现油位上升过慢,则应:
A.
查看泵管设备运行情况
B.
立即通知加油船检查
C.
立即降低加油速度
D.
立即通知暂停加装燃油
【简答题】同步发电机的电角度和机械角度的关系式是();具有()个磁极的同步机,电角度才等于机械角度。
【简答题】C语言的输入输出操作是由________和______________函数来实现的
【简答题】什么是电动机的电角度,电角度和机械角度有什么关系?
【单选题】加装燃油时,如发现油位上升过慢,应:
A.
查看泵管设备运行情况
B.
立即通知对方加油船检查
C.
立即降低加油速度
D.
立即通知暂停加装燃油
【单选题】电机理论中电角度θ电与机械角度θ机的关系为( )。
A.
θ电=pθ机
B.
θ电=θ机
C.
θ电=sθ机
D.
θ机=pθ电
【单选题】电机学的电角度和机械角度之间的关系是()。
A.
电角度=极对数×机械角度
B.
机械角度=极对数×电角度
【简答题】时间和空间电角度是怎样定义的?机械角度与电角度有什么关系?
【单选题】加装燃油时,如发现油位上升过慢,应_____。
A.
査看泵管设备运行情况
B.
立即通知加油船检查
C.
立即降低加油速度
D.
立即通知暂停加装燃油
【简答题】C语言的输入输出操作是由____ ____、______________函数来实现的
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