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【单选题】
考察知识点【无穷大与有界】A.
B.
C.
D.
D
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【简答题】Mobile phones are an important business tool for farmers in rural areas. But they also put a valuable educational tool in their hands. The University of Illinois in the United States has a project cal...
【单选题】The author of the selection believes that eye-movement investigations are ______.
A.
valuable because they provide a picture of the ways the mind works in perceiving word symbols
B.
worthless because eye movements have nothing to do with skillful reading
C.
worthless because they tell us little about how expert readers' functions are
D.
valuable because they tell us much about the way the eye is put together
【单选题】They say the satellite is probably______more than U.S. $ 30,000.
A.
weighty
B.
costly
C.
valuable
D.
worth
【单选题】Experts say the space rock is probably ______ more than $30,000.
A.
weighty
B.
costly
C.
valuable
D.
worth
【简答题】Before the widespread use of computers, managers could not make full use of large amounts of valuable information about a company’s activities. The information either reached managers too late or was ...
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