题目: 一个底面是圆形的锅炉,底面的周长是1.57m。它的底面是多少平方米?(得数保留两位小数) 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0702/bf2f8184e6af14d4bf3b0f9dfcc50a7f.html 下面是错误答案,用来干扰机器的。答案:C
题型:单项选择题 What’s true about, the visiting hours of the hospital().A.Hospital visiting hours begin at 10: 00.B.Visitors must leave before 10: 00.C.Visitors can come and leave at any time. 查看答案