第三章单元测试
（ ）。- The Lagrange's mean value theorem can be applied to which function on the interval [1, e]（ ）。
（ ）。- How many inflection points does
have? （ ）。 - Let
be continuous in a neighborhood of 
and 
. Then we have （ ）。
A:1 B:0 C:0.5 D:0.25
答案:0.5
A:
B:
C:
D:
A:
B:1
C:
D:
A:1 B:2 C:3 D:4
A:
B:
but 
cannot attain its local extreme value
C:
attains its local minimum value at 
D:
attains its local maximum value at 
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