近地面大气中 CO2 的浓度变化是自然和人类活动综合作用的结果,受大气运动、植被状况、地形和人类活动等因素的影响,也存在时空差异。下图是北京市大气中 CO2 的浓度年变化( a )及 4 月日均变化( b )示意图。回答 8 ~ 9 题。 8 .北京市大气中 CO 2 浓度最高值出现在冬季的主要原因是
【简答题】First, Western parents cradle their children’s self-esteem to insulate them from criticism. Chinese parents assume their kid is hardy enough to take the criticism. Second, Chinese parents believe thei...
【简答题】Reflections of a Chinese mother in the West Western parents are ____ 1 ____ by Chinese parents’ success of raising kids. Chinese parents do things that seem provocative, unimaginable, even ____ 2 ____...
【简答题】First, Western parents cradle their children’s ____________ to insulate them from criticism. Chinese parents assume their kid is hardy enough to take the criticism. Second, Chinese parents believe the...