抓斗桥式起重机适用于( )、( )、( )等进行散装物料的装卸吊运工作。
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。
A. 对
B. 错
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
A. 对
B. 错
1. The young man has been ____ his pension and savings account since he lost his job in January.
A. calling off
B. living off
C. pulling off
D. paying off