起复车辆连接转向架与车体时,用两条链条分别兜在转向架的拱板或铸钢侧架的轴箱上的连接工具是()。
A.钢丝绳链条
B.液压起复设备
C.转向架加固器
D.转向架挂钩
参考答案:D
用括号内所给单词的适当形式填空。(5分)
小题1:To tell the _______, I didn’t like the job very much at the beginning. (true)
小题2:Everyone should try to be polite and _______ to others. (help)
小题3:After the football game, he was too ______ to sleep. (exciting)
小题4:These years, young are so crazy about GuoJingming’s books. (read)
小题5:In Changchun there’re around _______ students in a middle school class. (five)
机油消耗量大的原因是什么?