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【简答题】
设有如下数据 x i 1 3 4 5 6 7 8 9 10 f i 2 7 8 10 11 11 10 9 8 利用最乘法求该组数据的多项式拟合曲线。
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举一反三
【单选题】According to the passage, a standard economic experience is that______.
A.
deficit finance is of value in economic crisis
B.
the stock market is in an irrational exuberance
C.
markets may fail under some circumstances
D.
humans are rational calculators
【单选题】The Fifth Euro-Asia Economic Forum, held in Xi’an on 1 st October, 2013, is aimed to ____ economic exchanges between Asia and Europe.
A.
preserve
B.
promote
C.
accomplish
D.
update
【简答题】I don't doubt ______ the stock market will recover from the economic cr. A) if B) what C) that D) which
【简答题】I don't doubt ______ the stock market will recover from the economic cr. A) if B) what C) that D) which
【单选题】The decision will give renewed ______ to the economic regeneration of backward regions.
A.
index
B.
impulse
C.
impact
D.
impetus
【单选题】What does the figure 0.2 percent in paragraph I indicate?
A.
America's economic recovery is still shaky.
B.
Economists are disappointed at the future economy.
C.
It is a good sign for America's economic recovery.
D.
The biggest obstacle to healthier economic performance is political.
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