2025 Tianjin Question 7 Single-choice Differentiating 2025_天津 Paper 7.函数 $f(x) = 0.3^x - \sqrt{x}$ 的零点所在区间是 A. $(0, 0.3)$B. $(0.3, 0.5)$C. $(0.5, 1)$D. $(1, 2)$ Answer keyB ☆ SaveCan't do it, show the explanation查看原卷 →