溶解度曲线为定量描述物质的溶解性提供了便利．如图是甲、乙两种物质的溶解度曲线．请据图回答：

（1）t₁℃时甲物质的溶解度____乙物质的溶解度（选填“＞”、“=”、“＜”）；

（2）当甲物质的溶液中含有少量乙物质时，可以采用的提纯方法是____；

（3）t₂℃时，将甲、乙两种物质的饱和溶液各50克，分别蒸发掉10克水，甲溶液析出晶体的质量____乙溶液析出晶体的质量（选填“＞”、“=”、“＜”）．

根据短文理解，选择正确答案。

    The principles about applying for jobs have altered greatly lately. In the past, people preferred a hand­written application letter. However, nowadays it is becoming more and more common to apply for a job through the Internet. You can find information on the Internet about how to apply for jobs. Information can be found about how to fulfill your application letter, the clothes that you should wear and how to carry out the interview itself.

    The importance of body language is often mentioned, but doesn't always get the attention it deserves. After all, before a word has even been spoken, your body language will have already given people their first impression of you. Additionally, your body language will also give out a lot more information. Based on your body language it can be seen if you are self-confident. It can also show if you are a busy or a quiet type and it helps give an impression of whether you are speaking truthfully or not. Body language can show how enthusiastic you are and if you are a nice person, someone who will take his work seriously, but also someone who has a sense of humor and can enjoy a joke from time to time. The members of the application committee will ask you questions, but your answers won't only be oral. The committee will not only pay attention to what you say, but also to how you say it! Body language will determine first if it “clicks”， and sometimes all it takes is just a few seconds. Everybody uses body language, but it takes place mostly at a subconscious (下意识的) level. Using body language appropriately, you can definitely increase your chances of getting a job.

我国能够成功实现对香港澳门行使主权，最根本的原因是（    ）

    Marjorie grew up with a sense of worthlessness. Again and again her father said she would never accomplish anything in life. He told her she was a loser and that anything she did was sure to end in failure. With these words constantly ringing in her ears she grew up looking for someone who would love her and see her as a person of worth. This led her into relationships that disappointed her, ending in pain yet, which was another proof that she was worthless and unlovable. Where does our sense of self-worth come from?

    It is true that the foundation for a person's self-worth is laid in the home. Words that we hear in our home can build or tear down our worth. Encouraging words are words of life to us while words of criticism are words of death. Other people like teachers, friends and employers add to the collection of life-giving death words in a person's heart. Over time a person begins to see themselves in the light of these words. In this situation can one develop a sense of worth?

    Feeling worthless is possibly the most obvious symptom of low self-esteem（自尊心）. But it's easy to overcome. However tough your childhood is, you can still choose to enrich the world every day simply by the way you interact with others and make caring decisions. Whether we contribute anything or not is a choice. Feeling worthless means that you're not doing as well in the areas that matter to you and therefore you need to try to increase your self-esteem. To feel worthwhile, you'll have to really work at it and never give up on yourself.

    All human beings are capable of adding value to society, including you. Thus there are no excuses for saying things like “I'm worthless, stupid, useless” because you have the choice not to be any of these things.