每到冬天，市场上便有一种“热宝”出售，它是一个装有化学药品的_爱下问搜题

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问题填空题

每到冬天，市场上便有一种“热宝”出售，它是一个装有化学药品的小袋．使用时，撕去它的保护膜贴在身体上，不久便会产生热量．已知小袋中装有铁粉、碳粉和少量氯化钠．

（1）取小袋内物质，加入稀盐酸中，发生反应的化学方程式为：______

（2）将袋内物质放在足量O₂中燃烧，写出反应的化学方程式：

①______；②______．

（3）将袋内物质加入到一定量的CuSO₄溶液中，充分反应后过滤，滤液中的溶质一定有______、______（填写化学式）．

答案

酸能与活泼金属反应，在三种物质中铁粉能与酸反应；碳粉与铁粉都能与氧气反应．且铁粉能与盐溶液反应．

故答案为：（1）Fe+2HCl=FeCl₂+H₂↑

（2）3Fe+2O₂

点燃

.

Fe₃O₄；C+O₂

点燃

.

CO₂；

（3）NaCl、FeSO₄

完形填空

Time is very important in our lives. It organizes our everyday moments. However, time never had any importance in my life until I 16 a watch from my father, which organized my life and made me more responsible. It’s round in the center with two silver bands(带) that   17 around my wrist and all of it is made of silver.
I received this   18 on a gray – sky day. I had to go to the airport at 9:00 am to  19 up my Uncle Ali and take him to my father’s house.  20 , I was late because I was   21 out with my friends. Later on that day, around 11:00 am, I   22 my uncle, but I was very late for him. He had   23 the airport and taken a taxi to my father’s house.
I got to my father’s house at 2:00 pm that day and felt ashamed of myself at that moment. After I said hi to my   24 father and tired uncle, my father asked me to sit next to him and handed me this watch as a gift from him. Then he said, “Peter, did you have   25 with your friends today?” I answered, “Yes, father, and   26 apologized for not meeting my Uncle Ali.” He said, “What you   27 was not very nice and you should be sorry for your action.” I was ashamed and said, “Father, I’ll never do it again . I promise.” He said, “I hope today you learned something important, and this watch will be a   28 for you.” He told me to take this watch and use it as an organizer of my 29 .
I learned a very important lesson from my father: to respect time and never to be late to get someone. This watch is   30 to me, not because of its price, but because of the lesson that I learned from it.

C．appointment

C．requirement

多项选择题

我国公司治理的主要症结是（）

A.党政不分

B.内部人控制

C.大股东损害中小股东利益

D.地方政府干预银行经营

E.高级管理人员的专业素质不高