The intake valves in a diesel engine are reseated by （）. ["cam followers","push rods","combustion gases","valve spring"]
现场标准化作业指导书编制应遵守的原则是什么？
（）May 3，2007，my ship met with bad weather there. ["in","on","during","at"]
真核细胞有丝分裂的意义在于（） ["保证母细胞完整地一分为二","保证复制后的染色体平均分配到两个子细胞中","保证母细胞的细胞质平均分配到两个子细胞中","保证母细胞的细胞器平均分配到两个子细胞中"]
循环球式转向器扇齿轴与转向器壳体中滚针轴承间隙如超过（）mm时，应更换轴承或扇齿轴。 ["0.05","0.08","0.10","0.12"]
简述因故导焦车格子内有满格红焦的处理方法。
