单项选择题What is advised for preventing shortsightedness? A.Less time in studying. B.More time in outdoors. C.Low price in education. D.Low pressure in studying.
单项选择题()是按照岗位的复杂程度、责任大小、技能要求、劳动强度及劳动环境等要素指标对岗位所进行的纵向分级。 A、职系、职组 B、岗级、职组 C、职级、职等 D、岗级、职门
