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【判断题】
若函数 满足 且 ,则 在 处必定取得极小值。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】Competition for grades and other pressures are supposed to take the responsibility of ______.
【单选题】---Can I ask for a leave tomorrow， Mrs. Harmon? --- . You've missed half of the lessons already.
A.
That all depends
B.
Forget it
C.
Never mind
D.
Don't worry
【简答题】When he got the call that his son was ill in California and not expected to live for long, Bill didn’t know (1)_____he was going to get the money for his wife and himself to make the trip. Bill had wo...
【单选题】There may be a solid core at the center of the Sun______.
A.
because the pressures are great
B.
for the temperature is not high enough
C.
in spite of the great pressures
D.
because of the high temperature
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