题目

During the week ____ he tried to collect materials for his article. A. following         B. followed            C. to follow         D. that followed 答案：D16．定义在R上的可导函数f（x）满足f（1）=1，且2f′（x）＞1，当x∈[-$\frac{π}{2}$，$\frac{3π}{2}$]时，不等式f（2cosx）＞$\frac{3}{2}$-2sin2$\frac{x}{2}$的解集为（　　）A．（$\frac{π}{3}$，$\frac{4π}{3}$）B．（-$\frac{π}{3}$，$\frac{4π}{3}$）C．（0，$\frac{π}{3}$）D．（-$\frac{π}{3}$，$\frac{π}{3}$）