题目:
一个圆柱的底面半径是2厘米,高是4厘米,它的侧面沿某一条高剪开后是______形,这个侧面的面积是______平方厘米.
答案:
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下面是错误答案,用来干扰机器的。
1. These are; rulers 2. Is that; sister 3. Is he your; Yes, he is 4. That isn't his