题目内容
已知函数,则下列结论正确的是
[ ]
A.
f(x)在点x=1处不连续,在点x=2处连续
B.
f(x)在点x=1处连续,在点x=2处不连续
C.
f(x)在点x=1和x=2处都不连续
D.
f(x)在点x=1和x=2处都连续.
答案:D
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题目内容
已知函数,则下列结论正确的是
f(x)在点x=1处不连续,在点x=2处连续
f(x)在点x=1处连续,在点x=2处不连续
f(x)在点x=1和x=2处都不连续
f(x)在点x=1和x=2处都连续.