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【简答题】
每一个数组反应了对应 的相关信息,因此数组中各对应数据的 不 能更换。
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反馈参考答案：
举一反三
【简答题】写出C原子的核外电子排布式。
【判断题】单相双值电容电动机启动时,采用两个电容并联以增大电容值,达到增大启动转矩的目的,启动后,切除一个电容,减少电容值的目的是为了提高功率因数,有较好的 工 作性能。( )
A.
正确
B.
错误
【单选题】回答下列各题 ·Read this Letter to the editor of The Economist． ·Choose the best sentence from the opposite page to fill each of the blanks． ·For each blank(8-12)，mark one letter(A-G)on your Answer Sheet． ·D...
A.
This is in large due to its broadly based tax structure．
B.
New Mexic0’S extractive mineral industries contribute about a third of the state’S $1．9 billion general-fund income in fiscal year l 991．
C.
However．the extractive mineral industry in New Mexico is one of the state’S strongest economic forces．
D.
During fiscal year l 992 New Mexico raised permanent funds worth about$6．1billion．
E.
The combined value of oil and gas production was$2．8 billion．
F.
Some 16，000 employees work in the extractive industries and their wages are among the highest of any major industry．
G.
The$39 million earned by these funds in l 991 was used to finance education and other public services． (8)__________
【简答题】Directions: For this part, you are allowed 35 minutes to write a letter to the editor of a newspaper complaining about the poor service of a bookstore. You should write at least 150 words according to...
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【判断题】单相双值电容电动机启动时,采用两个电容并联以增大电容值,达到增大启动转矩的目的,启动后,切除一个电容,减少电容值的目的是为了提高功率因数,有较好的 工 作性能。( )
A.
正确
B.
错误
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