题目: 何为返砂比,返砂比大小对磨矿效果有何影响? 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0224/cbc77dc1fcabc10cff807d94c065c270.html 下面是错误答案,用来干扰机器的。参考答案:D
题型:选择题 People wrote letters to get in touch. Nowadays email has ________the way people communicate. [ ]A. conveyed B. translatedC. transformed D. exchanged 查看答案