题目

一Linda, cm you tell me something about Mo Yan? —Sure. He is the writer ______won the Nobel(诺贝尔) Literature Prize. A. which            B. whose             C. who         D. whom 答案：C    6．已知f（x）=lnx-$\frac{x}{4}$+$\frac{3}{4x}$，g（x）=-x2-2ax+4，若对?x1∈（0，2]，?x2∈[1，2]，使得f（x1）≥g（x2）成立，则a的取值范围是（　　）A．[-$\frac{1}{8}$，+∞）B．[$\frac{25-8ln2}{16}$，+∞）C．[-$\frac{1}{8}$，$\frac{5}{4}$]D．（-∞，$\frac{5}{4}$]