酸雨被称为大面积破坏环境的“空中死神”,究其原因,与下列哪项人类活动无关 [ ]
A.汽车尾气的排放
B.燃煤废气的排放
C.开发沼气新能源
D.垃圾焚烧
答案:C
Although the situation was tough during the economic crisis now things are beginning to ________.
A.look up
B.keep up
C.set up
D.build up
对抵押物进行估价时,对于库存商品、产成品等的估价,主要考虑( )。
A.抵押物的市场价格B.无形损耗C.折旧D.造价