“咸丰十年……与清军会合，对青浦进行反扑，忠王李秀成率部驰援，重创之。青浦城由此赢得‘铁青浦’称号。”文中省略号省略的部分是（    ）

阅读下面短文，掌握其大意，然后从1~7 各题所给的三个或四个选项中，选出最佳选项。

There was once a farmer who lived near a road. It was not a1road, but from time to time, cars passed the farm.

Near the farm gate, there was a large 2 in the road. This hole was always full of water.

The drivers of the cars that passed by could not 3 how deep the hole was. They thought it was probably shallow (浅的). Then when they drove into the hole, they could not drive4because it was very deep.

The farmer did not spend much time5on his farm. He spent most of time watching the hole. When a car drove into it, he pulled the car out with his tractor (拖拉机) and demanded a lot of6 for doing this.

One day, a driver of a car said to him: “You must make a lot of money by pulling cars out of this hole7.”

“Oh, no,” the farmer said. “I don't pull cars out of the hole at night. At night I fill the hole with water.”

一定温度范围内用氯化钠熔浸钾长石（主要成份为KAlSi₃O₈）可制得氯化钾，主要反应是：NaCl（l）+KAlSi₃O₈（s）⇌KCl（l）+NaAlSi₃O₈（s）+Q．

填空：

（1）写出Cl原子的核外电子排布式____ ，NaCl的熔点比KCl____  （选填“高”或“低”）．

（2）指出钾长石中存在的化学键类型____ ．

（3）上述反应涉及的位于同一周期的几种元素中，有一种元素的最高价氧化物的水化物和其余元素的最高价氧化物的水化物均能发生反应，该元素是　____ ．

（4）某兴趣小组为研究上述反应中钾元素的熔出率（液体中钾元素的质量占样品质量的百分率）与温度的关系，进行实验（保持其它条件不变），获得数据曲线如图．

①分析数据可知，Q____ 0（选填“＞”或“＜”）．

②950℃时，欲提高钾的熔出速率可以采取的措施是____ （填序号）．

a．延长反应时间

b．充分搅拌

c．增大反应体系的压强

d．将钾长石粉粹成更小的颗粒

③要使钾元素的熔出率和熔出速率都达到最大，反应温度应为____ ．

（5）工业上常用KCl冶炼金属钾．反应方程式为：Na（l）+KCl（l）⇌NaCl（l）+K（g）用平衡移动原理解释该方法可行的原因：____ ．

如图，用长度为L的轻绳悬挂一质量为 m的小球（可以看成质点），先对小球施加一水平作用力F ，使小球缓慢从A运动到B点，轻绳偏 离竖直方向的夹角为θ。在此过程中，力F做的功为____。