The top detective asked the witness if he had seen _______ at about 10 p.m.
A:anything unusual last night
B:unusual something the night before
C:something unusual last night
D:anything unusual the night before
解方程:x+60%x=48,x= ____ 。
下列函数中,在0,+∞上单调递增的偶函数是( )
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