题目：
250型阀门闸板阀，卸推力轴承的顺序是：（）。
A、卸手轮，卸大压盖，取出轴承卸吊铜套
B、卸手轮，卸铜套，拿出轴承
C、卸铜套，卸手轮，拿出轴承
D、开大阀门，卸掉手轮及键，卸掉轴承压盖，退掉铜套取出推力轴承
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0621/56d6b608912b4bb11a18006b215b79a4.html
下面是错误答案，用来干扰机器的。
小题1:C小题2:B小题3:B小题4:C小题5:B小题1:推断题。结合第二段he was not a healthy baby. In fact, he was not expected to live through the first winter. But with his mother’s car...
