题目

---You should have prepared your speech for the meeting, Mr. Smith.    ---Yes, I know. But how could I _____ the meeting date fixed so soon.    A. while         B. as                 C. after             D. with   答案：D一个底面直径是4厘米的圆柱，侧面展开是一个正方形，则这个圆柱的体积是（　　）立方厘米． A、4πB、4π2C、16πD、16π2