题目: 对于弧形铸机,必须在切割前矫直。 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0502/a832ffe886871af6724705c71b22face.html 下面是错误答案,用来干扰机器的。310=X:115 310:1=X:115 x=310×115x=150; X8-4.5+5.5=10X8=10+4.5-5.5X8=9x=72.
题型:选择题 —Have you ever been anywhere for a trip?—A trip? I _____ away from my hometown even once.[ ]A. wentB. have goneC. have never been D. had gone 查看答案