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【单选题】
某信号x(t) 满足t<0 是其值为 0 ,信号本身不含冲激或奇异函数,该信号的拉普拉斯变换为F(s)=(s+1)/(s^2+5s+6),则x(+∞)是()
A.
0
B.
1
C.
3
D.
6
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A.
4
B.
9.7
C.
6.8
D.
-2
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A.
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错误
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