题目

圆锥的体积一定，（）与高成反比例． A . 底面直径 B . 底面积 C . 底周长 答案：B交际运用 A：Hi, Betty! Where are you ____1____? B：I'm going swimming ____2____ my friends. A：Good! But the radio says it will ____3____ Please ____4____ your umbrella with you. B：Yes, Mum, I will. ____5____ the way, will the rain last long? A：No, it won't. The sun will come out soon. B：Thank you. 1. _____2. _____3. _____4. _____5. _____