题干

工业上用含有少量氧化铁杂质的废铜粉为原料,制取硫酸铜的主要过程如下图所示:

下列有关说法不正确的是(   )

A:“过量酸”不适合用硝酸或浓硫酸,固体B可以用CuO、Cu(OH)2或Cu2(OH)2CO3

B:通入的气体A可以是O2或Cl2

C:通入气体A之前的混合溶液中存在的阳离子是:Fe2+、Cu2+、H+

D:将从溶液中得到的硫酸铜晶体在空气中加热,可制得无水硫酸铜

上一题 下一题 0.0难度 选择题 更新时间:2012-07-12 12:51:29

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B

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    Have you ever picked a job based on the fact that you were good at it but later found it made you feel very uncomfortable over time? When you select your career, there's a whole lot more to it than assessing your skills and matching them with a particular position. If you ignore your personality, it will hurt you long-term regardless of your skills or the job's pay. There are several areas of your personality that you need to consider to help you find a good job. Here are a few of those main areas;

1) Do you prefer working alone or with other people?

    There are isolating jobs that will drive an outgoing person crazy and also interactive jobs that will make a shy person uneasy. Most people are not extremes in either direction but do have a tendency that they prefer. There are also positions that are sometimes a combination of the two, which may be best for someone in the middle who adapts easily to either situation.

2) How do you handle change?

    Most jobs these days have some elements of change to them, but some are more than others. If you need stability in your life, you may need a job where the changes don't happen so often. Other people would be bored of the same daily routine.

3) Do you enjoy working with computers?

    I do see this as a kind of personality characteristic. There are people who are happy to spend more than 40 hours a week on a computer, while there are others who need a lot of human interaction throughout the day. Again, these are extremes and you'll likely find a lot of positions somewhere in the middle as well.

4) What type of work environment do you enjoy?

    This can range from being in a large building with a lot of people you won't know immediately to a smaller setting where you'll get to know almost all the people there fairly quickly.

5) How do you like to get paid?

    Some people are motivated by the pay they get, while others feel too stressed to be like that. The variety of payment designs in the sales industry is a typical example for this.

    Anyway, these are a great starting point for you. I've seen it over and over again with people that they make more money over time when they do something they love. It may take you a little longer, but making a move to do what you have a passion for can change the course of your life for the better.