题干

如图所示,将白磷(a)和红磷(c)分装于Y形试管的2个支管中,管口系牢小气球,将2个支管同时伸入相同深度的热水(80℃)中,热水中还有一块白磷(b)。下列有关说法错误的是(   )

A:烧杯中的热水的作用不仅提供热量,而且能隔绝空气

B:a与c对比中说明可燃物燃烧条件之一是温度要达到着火点

C:b与c对比说明可燃物燃烧的条件之一是可燃物与氧气接触

D:小气球能缓冲管内压强变化,同时防止白烟进人空气中

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C

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    Confidence is a skill that many folks want to master, but have a hard time acquiring. Have you ever wondered why? Possibly you were born confident. You were talked to negatively as a child or maybe you were rejected many times. Whatever the case is____ But how to boost your confidence?

    Begin to act as if you are confident. Act as the person you would want to be like____ Surround yourself with people who you think are confident and have high value. You will learn so much from observing other confident folks.

    ____One of the most areas that you need to pay attention to is your self-talk. Your thoughts about your capabilities and self-worth need to be positive and encouraging. Whenever you notice you think negatively, pause and take a moment, and shift your focus to something that can help you feel better about yourself.

    Go after your goals. If you are really serious about building self-confidence, you need to identify your goals and go after them. The more you add to your accomplishments, the more confident you will feel about your abilities and skills____

    By using these steps to boost your confidence____

A. Always stay positive.

B. Improve your self-talk.

C. Begin to think and behave like them.

D. This requires you to know what a confident person looks like.

E. you will be on the path to improving your self-esteem (自尊) and self-worth.

F. You'll begin to trust your inner self more and appreciate yourself more.

G. you should know you can improve your self-esteem and build confidence.