【单选题】八年级学生小富说:“受教育是我的权利,我愿放弃就放弃。”所以,该生上课不遵守纪律,经常不完成学习任务,甚至逃课旷课。小富同学的错误在于( ) A. 没有正确认识到受教育既是公民的权利又是公民的义务 B. 只享受了受教育的权利,没有履行受教育的义务 C. 割裂了权利与义务的一致性 D. 没有认真履行遵守学校纪律、尊敬老师,努力完成规定的学习任务的义务
【单选题】采用Top-down方法估算铅的In-use stock案例中,建立铅消费量P与投入使用的物质量U间定量联系的最主要理由是( )In the case study that the in-use stock of lead is estimated by top-down method, which of the following describes the main reason for es...
A.
物质消费量数据较投入使用的物质量数据更具有可得性 The data for material consumption is more available than the data for material entering Use stage
B.
物质消费量较投入使用的物质量更接近“使用”阶段 The material consumption process is closer to the Use stage than the process of material entering Use stage
C.
物质消费中更容易形成库存量 It is easier to form a material In-use stock in the material consumption process
D.
物质消费量与贸易量无关 Material consumption is independent with the trade volume