【简答题】Fill in the blanks with the words from this unit that match the meanings in the column on the right. The first letters are already given. 1. l a large
vehicle for carrying heavy goods. 2. c the amount...
【单选题】当轿厢上下运行时,轿厢通过钢丝绳驱动限速器绳轮往复运行,一旦速度超过( ),限速器甩锤或甩球的离心力增大,通过拉杆、弹簧等传动机构卡住钢丝绳。
【简答题】Put the following steps of operating a fax machine into the right order. 1. You just feed in the second page. 2. You turn the document face up. 3. Dial the number. 4. Put it into the feeder. 5. Press...