machines; that; for; in; example; error; either; times; which; electronic; mechanical; or; through; than; humanA computer is a machine designed to perform work mathematically and to store and select information that has been fed into it.It is run by
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![machines; that; for; in; example; error; either; times; which; electronic; mechanical; or; through; than; humanA computer is a machine designed to perform work mathematically and to store and select information that has been fed into it.It is run by](/uploads/image/z/1874001-57-1.jpg?t=machines%3B+that%3B+for%3B+in%3B+example%3B+error%3B+either%3B+times%3B+which%3B+electronic%3B+mechanical%3B+or%3B+through%3B+than%3B+humanA+computer+is+a+machine+designed+to+perform+work+mathematically+and+to+store+and+select+information+that+has+been+fed+into+it.It+is+run+by)
machines; that; for; in; example; error; either; times; which; electronic; mechanical; or; through; than; humanA computer is a machine designed to perform work mathematically and to store and select information that has been fed into it.It is run by
machines; that; for; in; example; error; either; times; which; electronic; mechanical; or; through; than; human
A computer is a machine designed to perform work mathematically and to store and select information that has been fed into it.It is run by [51] mechanical or electronic means.These [52] can do a great deal of complicated work [53] a very short time.A large computer,for [54] ,can add or subtract nine times a second,multiply a thousand [55] a second,or divide five hundred times a second.Its percentage of [56] is about one in a billion digits.It has been estimated [57] human beings making calculations average about one mistake per two hundred digits.The heart of an [58] computer lies in its vacuum tubes,[59] transistors.Its electronic circuits work a thousand times faster [60] the nerve cell in the human brain.A problem that might take a human being two years to solve can be solved by a computer in one minute,but in order to work properly,a computer must be given instructions--it must be programmed.
machines; that; for; in; example; error; either; times; which; electronic; mechanical; or; through; than; humanA computer is a machine designed to perform work mathematically and to store and select information that has been fed into it.It is run by
【参考答案】
51、either
52、machines
53、in
54、example
55、times
56、error
57、that
58、electronic
59、or
60、than
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