如图为A、B、C、三种物质的溶解度曲线图，试回答下列问题：
（1）温度为t1℃时，A、B、C 三种物质溶解度由大到小的顺序为______；
（2）t2℃时A 和B 两物质的______相等；
（3）若A中混有少量的B，欲从此混合物中分离出A可采取的方法是______．
（1）温度为t1℃时，A、B、C 三种物质溶解度由大到小的顺序为BCA．
（2）t2℃时A 和B 两物质的溶解度曲线交于一点，说明两物质溶解度相等；
（3）A的溶解度受温度影响较大，B物质的溶解度受温度影响较小，A中混有少量的B，欲从此混合物中分离出A可采取降温结晶．
故答案为：（1）BCA （2）溶解度 （3）降温结晶．
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| I am a lovely and happy boy. I 1 my parents, teachers, friends and classmates, and I also love my city and the world, 2 I love life. But sometimes I am 3 . I want to do everything well, I want to be a good boy. I want every one to love me. If I do something 4 , I feel unhappy. I'll think I am good for nothing and I'll be upset 5 some time. Then persons who love me 6 tell me: "You can't do all things better than anyone else. You can't do all things 7 . You have to 8 who you are. You have to decide what comes first, and then do that." "You'll have to learn to accept yourself. You'll have to live with your limitations(局限). You are just 9 . You're wonderful. It's your duty to be who you are." It's true that I can't do 10 very well, but I'll try my best. Then I'll become myself--a lovely child. So my world will become beautiful, full of happiness. | |||
| ( )1. A.dislike ( )2. A.because ( )3. A.in surprise ( )4. A.exciting ( )5. A.on ( )6. A.often ( )7. A.at first ( )8. A.search for ( )9. A.myself ( )10.A.other things | B. love B. although B. in danger B. interesting B. for B. never B. at last B. look for B. yourself B. nothing | C. follow C．when C .in a hurry C. wrong C. by C. seldom C. at a time C. work out C. himself C. everything | D. remember D．before D. in trouble D．right D. with D. nearly D. at times D. find out D. yourselves D. anything |