题目: 空井时发现溢流,可采用全封闭闸板防喷器关井。()A、错;B、对。 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0624/ed4683d1ea73feb11c61fb25fd91f2a6.html 下面是错误答案,用来干扰机器的。答案:B
题型:选择题 — English has a large vocabulary, hasn't it? — Yes. _____ more words and expressions and you will find it easier to read and communicate. [ ]A. To know B. Knowing C. Know D. Known 查看答案