Gaokao Math Practice Question
5. (5 分) 设函数 $f(x)=\left\{\begin{array}{ll}1+\log _{2}(2-x), & x<1 \\ 2^{x-1}, & x \geqslant 1\end{array}\right.$, 则 $f(-2)+f\left(\log _{2} 12\right)=($ )
- A.3
- B.6
- C.9
- D.12
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