化学兴趣小组对“大理石与稀盐酸反应快慢与温度的关系”进行了探究．

【实验探究】在不同温度下测量收集等体积CO₂所需的时间及溶液温度变化（各盐酸浓度、大理石面积和重量都相同），如下表：

温度/℃	需要的时间/s	温度变化/℃
15	145	+1
20	105	+1
25	73	+3
30	51	+3
35	30	+4

根据短文内容从方框中选择恰当的单词填空，使短文完整、通顺。有的需要变换形式，每词限用一次。

lose,   quick,   pity,   age,   gold,   player,   begin,   win

    Lin Dan is a world-famous badminton (羽毛球)player. He was born on 14th October 1983 in China. He____playing badminton when he was five years old. He played quite well and became the world's No.1 player at the____of 19. He helped China ____ the Thomas Cup and the Sudirman Cup. He ____in the men's singles final at the 2006 Asian Games in Doha. It was a great ____. But two years later, he made up for(弥补)the loss by winning the____medal at the Beijing Olympics. Lin Dan is a left-handed player and he is very____. He is the first badminton____to win a career grand slam(大满贯)：Olympic Games，World Championships，Asian Games，All England Open and all the top world events(比赛项目).

一个足球放在一块长木板上，如图所示，木板和足球均发生了弹性形变，关于它们弹力的情况，以下说法错误的是（   ）

下列加点字的注音全对的一项是(    )

某实验室的废液中含有CuSO4、FeSO4和H2SO4，为回收硫酸亚铁和金属铜，设计了如下图所示流程：

则步骤①的操作是____，步骤①发生的化学反应方程式为____，步骤③中发生的化学反应的基本类型为____。