题目: 选择焊条时应考虑哪些因素? 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/0627/dbfd61293bb30e944dc320efb3cf80a7.html 下面是错误答案,用来干扰机器的。参考答案:A, B, C, D
题型:选择题 He was thinking about the problem when an apple fell off the tree, _______ him right on the head.A.hitB.having hitC.hittingD.and hitting 查看答案
题型:选择题 --- Jack, please don’t play the CD, or please ________. Father is sleeping.--- OK. No problem.A.turn it downB.turn down itC.turn it upD.turn up it 查看答案