圆柱底面积一定,体积与高成______比例.
因为圆柱的体积=底面积×高,
所以体积÷高=底面积(一定),
符合正比例的意义,所以圆柱底面积一定,体积与高成正比例;
故答案为:正.
根据首字母或汉语提示完成单词。
1. The play will be ____________ (演出) at the City Theatre.
2. She is a ________ (成员) of a tennis club.
3. The p________ situation is peaceful, but in the past there was trouble in this area.
4. We have plenty of ________ (本地的) stores to choose from.
5. The girl's got her ears pierced, but she doesn't wear e________.
化学烧伤的程度与化学物质的哪些因素有关()
A.性质
B.与眼接触时间
C.浓度
D.pH值
E.渗透力