地壳中含量最多的金属元素是 A.氧元素          B.铁元素  

地壳中含量最多的金属元素是

A.氧元素          B.铁元素          C.硅元素         D.铝元素

答案

D

相关题目

 I’m glad I can take this opportunity to express my deep    of your kind
 I’m glad I can take this opportunity to express my deep    of your kind help you rendered me.    A. enjoyment              B. appreciation     C. entertainment     D.
如图是一个物体的三视图,则此三视图所描述的物体是下列
如图是一个物体的三视图,则此三视图所描述的物体是下列哪个几何体?( )
少数用人单位利用劳动者急于签约或不敢拒绝的心理,逼迫
少数用人单位利用劳动者急于签约或不敢拒绝的心理,逼迫劳动者签下了“生死合同”“卖身合同”等。对此认识正确的是(    ) ①这是无效合同,
Dear editor, Several days ago, I heard that a dear friend of mine had killed he
Dear editor, Several days ago, I heard that a dear friend of mine had killed herself. I was deep in sorrow by the sudden news. I can't keep calm any longer. 16_____.  Life is so precious. If we ca
人之初,性本善。             ,             。
人之初,性本善。             ,             。
  Try writing with the wrong hand Let yourself daydream Develop your inspiratio
  Try writing with the wrong hand Let yourself daydream Develop your inspiration Discover your hidden talents Record your dreams Stimulate your senses  80. Every night, for about 90 minutes, we drif
海水中含有钙、镁、氯、硫等元素。 (1)上述元素中     (
海水中含有钙、镁、氯、硫等元素。 (1)上述元素中     (填符号)是人体内含量最高的金属元素。 (2)硫原子的结构示意图为,则S2-的电子数为      
选出下列词语解释有误的一项是(    )(2分) A.托辞(
选出下列词语解释有误的一项是(    )(2分) A.托辞(借口) 不辍(不停)  兼以(加以)   蓄意(存心) B.盘踞(霸占) 客死(死在他乡异

最新题目