题目

41.The foreigners came to China in order to learn Chinese a        （农业的）skills. 42.Mexico gained its i        （独立）from Spain in 1821. 43.The new building destroy the b_______（美丽）of the countryside. 44.The students must a        （道歉）to their teacher for being late. 45.My father does not have much b_______（信任）in doctors of traditional Chinese medicine. 46.The young girl is an e_______（精力充沛的）tennis player. 47.The party was in c        （庆祝）of Mother´s silver wedding. 48.Rocks may hold some information 某地里的一些玉米，有的穗子上出现缺粒现象，其原因是A．水分不足B．传粉不足C．光照不足D．营养不足