据2003年7月13日《金陵晚报》题为《废弃定影液中淘出银子》的文章报道，有人利用摄影店废弃的定影液，每月可回收价值约20万元的银．一种回收方法的反应原理是：Fe+2AgNO3═2Ag+Fe（NO3）2这个反应属于（ ）
A．化合反应
B．分解反应
C．置换反应
D．无法确定
该反应由一种单质与一种化合物反应生成另一种单质和另一种化合物，符合置换反应的概念，属于置换反应，故选C．
请先阅读下面短文，掌握其大意，然后从方框中所给的词中选出最恰当的10个，用其适当形式填空，并将答案填写到答题卷的相应位置。每个词限用一次。
 There are lots of jobs which we can do. Some are just ordinary (普通的) jobs and 56 are careers (职业), but each person likes something 57 .  My favorite job is that of a (n) 58 . You can make beautiful thing and you don't have to 59 to get to work. Also, you don't have to do what other people tell you. You can 60 what you are going to paint and then you just do it. The only 61 thing is that artists don't make very much money. The worst job I can think of is a pilot's. You have to work for long hours and it's 62 tiring and boring. If you make a serious mistake, 63 will go wrong. It's too dangerous. The only good thing is that pilots are paid a lot of money, 64 money isn't the most important thing about a job. In a word, 65 job has both good and bad things about it, but I think that artists have got the best jobs. |