A rich man loved his little boy very much. He wanted 1  him happy all the time. So he gave him everything that he could buy with   2 . But the little boy was still  3  .Where he went, he always wore a frown(皱眉). And he always wished for something he did not have. The rich man didn't know   4  to make his son happy.
    One day, a magician(魔术师) came and said to him, “I can make your son happy and  5  his frowns into smiles, but you must pay me a great price   6 telling him the secret.”
   “All right,” said the man, “No matter what you ask for, I  7  you.”The magician took the boy into a secret room. He wrote something on a piece of paper, and then gave it to the boy. There were some words on the paper, “Do one  8  thing for someone every day.” The boy followed the  9   and became one of the happiest boys.
    I think only those who are always thinking about   10  can be truly happy.

王安石变法在时间维度上是北宋中期对北宋初期以来社会问题的回应，在空间维度上是南方派系对北方派系的斗争。在空间维度上，下表中论据选用正确且论证过程合理的是（    ）

如图是某人在饭前、饭后血糖含量变化曲线图。引起图中d---e段血糖浓度快速下降的激素是（  ）

下列结论错误的是（　　）

①微粒半径：r（K⁺）＞r（Al³⁺）＞r（S^2﹣）＞r（Cl^﹣）

②氢化物的稳定性：HF＞HCl＞H₂S＞PH₃＞SiH₄

③还原性：S^2﹣＞Cl^﹣＞Br^﹣＞I^﹣

④氧化性：Cl₂＞S＞Se＞Te

⑤酸性：H₂SO₄＞H₃PO₄＞H₂CO₃＞HClO    

⑥非金属性：O＞N＞P＞Si

⑦金属性：Be＜Mg＜Ca＜K．