题目

--- Did that book give the information you needed?--- Yes, but ______, we had to read it almost entirely. A. for finding it    B. to find it   C. finding it     D. by finding it 答案：B 解析: 此处的to find it, 表示目的。圆柱体的侧面展开，放平，是边长分别为10厘米和12厘米的长方形，那么这个圆柱体的体积是300π或360π300π或360π立方厘米．（结果用π表示）