题干

化学真正成为一门独立的学科,经历了一个漫长的历史过程。下列叙述中错误的是(    )

A:古时候,人类发现并利用了火这一与化学有关的现象

B:原子论和分子论学说的创立,奠定了近代化学的基础

C:道尔顿发现了元素周期律和元素周期表

D:现在,化学家已能利用各种先进的仪器和分析技术对化学世界进行微观探索下列不符合

上一题 下一题 0.0难度 选择题 更新时间:2016-06-22 05:32:20

答案(点此获取答案解析)

C

同类题2

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