题目内容
抓斗桥式起重机的构造与吊钩桥式起重机的构造基本相同，区别仅在于起升机构。
查看答案
搜索结果不匹配？点我反馈
更多问题
抓斗桥式起重机是通用桥式起重机中最基本的类型，其他各种类型的起重机都是在其基础上派生而来的
1. The young man has been ____ his pension and savings account since he lost his job in January.
KFC _____ served only a few items but now offers more than 140. Yet the restaurants’ revenue fell by 11 percent in the first quarter of 2015.
There is no doubt that the human is the most ______ intangible asset for any company in today’s dynamic and continuously changing business world.
微信支付 
支付宝支付