An activity for love was held ________ those who were killed in the Wenchuan Earthquake in 2008.[      ]

A. in memory of  

B. in place of

C. in search of  

D. in favor of

第二类建筑物防直击雷装置宜装设在建筑物上，并应在整个屋面组成尺寸不应大于（）或（）的避雷网格。避雷针（线）保护范围的滚球半径为（）。