Gaokao Math Practice Question
已知函数 $\left\{\begin{array}{l}e^{x}, x \leqslant 0， \\ ln x, x>0 \end{array}, g(x)=f(x)+x+a \right.$.若 $g(x)$ 存在 $2$ 个零点, 则 $a$ 的取值范围是 ($\qquad$)
- A.$[-1,0)$
- B.$[0,+\infty)$
- C.$[-1,+\infty)$
- D.$[1,+\infty)$
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