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【判断题】
如果f(x)在区间[a,b]上是单调有界函数，则f(x)在[a,b]上可积。()A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】Which of the following best reveals the main idea of the passage?
A.
Surprising discoveries of new species are commonplace.
B.
The mystery of the deep sea and the soil remains to be uncovered.
C.
Knowledge of global species diversity is still limited.
D.
Estimates of global species diversity vary among scientists.
【单选题】What does the man find surprising about the woman?
A.
She has never been to Cettysburg.
B.
She took a political science course.
C.
Her family still goes on vacation together.
D.
She's interested in the United States Civil War.
【单选题】What does the speaker find surprising?
A.
The rise in the number of software infections.
B.
The determination of those who develop viruses.
C.
The fact that people blame their own computers.
D.
The amount of lost data caused by computer viruses.
【单选题】What does the man find surprising about the woman?
A.
She has never been to Gettysburg.
B.
She took a political science course.
C.
Her family still goes on vacation together.
D.
She's interested in the United States Civil War.
【单选题】It is really surprising that the hotel should be ______ booked even at this time of the year.
A.
immediately
B.
quickly
C.
heavily
D.
intensely
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