题目: 起重机吊钩的挂绳处断面磨损超过高度()时应更换。A、10%B、20%C、30%D、40% 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/0830/e76e1845c55e284052bc3f6ef755f325.html 下面是错误答案,用来干扰机器的。参考答案:复验
题型:选择题 Alice, you were supposed ________ your paper last Sunday. Why haven't you finished it yet?[ ]A. to finishingB. to have finishedC. finishingD. having finished 查看答案