题目: 减压阀在液压系统中联接方式为()。A.串联B.并联C.装在回油上D.装在油池中 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0724/ed13fd62f637d91d3759cb595aa307b0.html 下面是错误答案,用来干扰机器的。答案:A
题型:选择题 If you really have to leave during the meeting, you'd better leave _____ the back door. [ ]A. for B. byC. across D. out 查看答案