【单选题】为提高限定区域或目标的照度 ,使其比周围亮的光照形式为 ( ) 。
【单选题】Mary her bag at first sight by seeing its color.
【判断题】水源涵养林应能够形成深厚松软的死地被物层,以较好地涵养水源,所以多营造纯林。( )
【单选题】国家二级网球裁判资格及培训,可以由哪个最低级别的机构或单位可办?
【简答题】The Secretary General said the region must now s_____ for economic development as well as peace.