题干

根据a,b,c三种物质的溶解度曲线判断,下列说法错误的是(  )



A:t1℃时,a,c的溶解度相等

B:b的溶解度受温度变化的影响不大

C:t2℃时,a,b两种溶液的溶质质量分数相等

D:三种物质的饱和溶液从t2℃降低到t1℃时,新溶液中溶质质量分数的大小顺序是b>a>c

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C

同类题5

任务型阅读

    Small talk is the short conversations we have at parties, while we wait in line at the store, at family events or work. Sometimes we make small talk with people we already know but not well. Often we have to make small talk with complete strangers.____ Here are some tips to improve your small-talking ability.

    ⒈____

    If you have seen a really good movie or have read a really good book, you can talk about that.

    When you are sharing the same experience with someone, it's easy to start a conversation. You simply notice and comment on what's going on around you. For example, if you are at a party and a song comes on that you like or that reminds you of something, you can talk about that.

    ⒉Ask open-ended questions

    These types of questions require more thought and more than a simple one-word answer.____ the conversation will go on longer.

    ⒊Become a student

    Nobody knows everything. So,as someone is answering one of your open-ended questions, they bring up something about which you know nothing. So, tell them! This lets the other person become the teacher.____ It's a win-win situation.

    Like anything, getting good at making small talk takes practice.____you might become happier. If you are making small talk using English, you will most definitely improve your speaking and listening skills.

A. Have some conversation starters ready

B. If you make small talk in your native language

C. However, some people are not good at small talk

D. If you ask questions that need more details to answer

E. You can talk about something that you recently learned

F. Many people find these small conversations about random topics easy

G. They feel good about sharing their knowledge and you get to learn something