斗轮机的大臂回转机构在启动时抖动较大，回转过程中可以进行大车行走快速调整。
参考答案：错
连词成句。
1. have dinner we family big a (.)
________________________________________
2. at sing we Christmas songs (.)
3. tree have Christmas a we (.)
4. today Chinese it's New Year (. )
5. about it's Festival Spring (.)
伤寒患者出现玫瑰疹，多见于( )
A．潜伏期B．发病初期C．高热期D．缓解期E．恢复期
