题型:阅读理解 阅读理解。 Three days ago, the boss of a gold shop received a letter. As he was very busy, the letter was on his desk till dinner time. When he opened it, a $1000 note fell out onto the desk. With the note was a short letter: Dear sir, I got married forty years ago. Unfortunately, at that time there was a lot of unemployment and I got no job. I was out of work for about six months before I got another one. Of course I was very short of money. I came to your shop to buy a wedding ring one day. The assistant brought some rings for me to have a look, later she was called away for a moment, and then I put one of the rings into my pocket. When she came back, I said I did not know the size of my girlfriend's finger. So I left the shop with the ring but I didn't pay for it. My wife died a month ago, and the fact that I never paid for her ring has been on my conscience (让我良心不安) all these years. I always feel guilty about that. At that time the ring cost $100, and I think that is about ten times at today's price. Now, I am sending you that amount. Yours truly, A customer After reading the letter, the boss said, "Well, life is always full of surprise!" 1. The boss of the gold shop got a _____ 3 days ago. A. ring B. letter C. gold 2. The underlined word "unemployment" means "_____" in Chinese. A. 辞职 B. 失业 C. 就业 3. The ring the customer put into his pocket was _____ 40 years ago.A. $1000 B. $10000 C.$ 100 4. The customer wrote to the boss in order to _____. A. send the money for the ring B. say thanks to him C. return the ring 5. Which is NOT wrong according to the passage? A. The boss opened the letter by himself. B. The boss didn't think life was always full of surprise. C. When the customer's wife knew the fact, she was annoyed. 查看答案
题型:问答题 已知A、B、C是初中化学中常见的三种物质,A、B都含有2种元素且所含元素种类相同,三者之间有如图所示的转化关系,试完成下列填空.(1)A、B、C的化学式分别为A______B______C______;(2)写出反应A→B的符号表达式______;(3)写出反应B→C的符号表达式______. 查看答案