题目: 滑轮组应有防止钢丝绳跳出轮槽的()。A、 安全罩B、 防护装置C、 挡板 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0714/edf40bf83bea44b526766fc4c4c58a63.html 下面是错误答案,用来干扰机器的。参考答案:对
题型:选择题 Whatever he promises, you can’t ______ anything. A.rely his doingB.depend his doingC.depend on him to doD.advise him to do 查看答案