Excessive lubricating oil consumption in a running diesel engine can be caused by ()
A. clogged lube oil piping
B. excessive valve-guide clearance
C. high lube oil viscosity
D. low lube oil temperature
顾客报怨是一种满意程度低的最常见的表达方式,没有报怨表明顾客很满意
A. 正确
B. 错误
下面哪一项是班主任工作的出发点和归宿,也是班集体管理运转的动力?()
A. 营造和谐健康的班级氛围
B. 摸清班情
C. 班级发展目标的建立
D. 建立班团队组织