元素周期表中,在金属元素和非金属元素交界处最容易找到的材料是

元素周期表中,在金属元素和非金属元素交界处最容易找到的材料是 …(    )

A.制催化剂的材料                      B.耐高温、耐腐蚀的材料

C.制农药的材料                         D.半导体材料

答案

D

相关题目

党的十八大报告指出“着力推进绿色发展、循环发展、低碳
党的十八大报告指出“着力推进绿色发展、循环发展、低碳发展,形成节约资源和保护环境的空间格局、产业结构、生产方式、生活方式,从源头上扭
. After the terrorist attack last month, anyone at the airport       heavy
. After the terrorist attack last month, anyone at the airport       heavy bags, bottles of liquid, or whatever, could be stopped and questioned by the police. A. seen carrying         
      When I was small and my grandmother died, I couldn't understand why
      When I was small and my grandmother died, I couldn't understand why I had no tears. But that night when my dad tried to cheer me up, my laughs turned into crying.       So it came
全国政协十一届一次会议期间,社会福利保障类提案共549件
全国政协十一届一次会议期间,社会福利保障类提案共549件,约占提案总数的11.77%。提案反映出,委员们对劳动保障法制建设、农村养老保险体系建设
. Much__________he has a good taste, he can’t avoid being influenced by advert
. Much__________he has a good taste, he can’t avoid being influenced by advertisements.        A.that he claims          B.does he claim        C.as he claims      
读图,回答下列问题:(8分)   (1)当太阳直射A点时,
读图,回答下列问题:(8分)   (1)当太阳直射A点时,地球位于公转轨道上的      处,这时自贡的昼夜长短情况是          ;当地球由公
洋葱根尖分生区细胞在分裂过程中不会出现的是        
洋葱根尖分生区细胞在分裂过程中不会出现的是                            A.在细胞周期的分裂期,核糖体上合成DNA聚合酶和RNA聚合酶 B
继汶川大地震以来,在短短的两年中,我们又经历了西南地
继汶川大地震以来,在短短的两年中,我们又经历了西南地区大旱、王家岭矿难、青海玉树地震的打击。面对灾难,在党和政府正确领导下,全国人民

最新题目