题干

同学们完成了对“液体沸腾实验”的探究后,老师告诉大家,在生活中,将液态氮(沸点为-196℃)倒入盛有奶浆的碗里就可以制作美味的冰淇淋.制作过程中可以观察到杯中液态氮沸腾,杯外壁出现白霜.对此现象分析正确的是(   )

A:白霜是空气中水蒸气遇冷液化形成的

B:杯中液态氮沸腾时温度不断上升

C:杯中液态氮不断吸热,温度保持在-196℃

D:杯中液态氮沸腾过程中一直在放热

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C

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Five ways to improve creativity

    Creativity is the ability to go beyond traditional rules, ideas or relationships and create something new through imagination or progressiveness. There are many ways to improve your creative mind.

    Exercise the mind. Exercising your mind is an ideal way to boost creativity. Like the body, the mind needs exercise to work the creative muscles and make them stronger. Exercise your brain by learning new subjects, getting into a debate about politics and talking to other creative and intelligent people.____

    Be passionate. One aspect of creativity is passion.____ Find your internal motivation and follow your passion to improve your creativity.

    Change your routine.____To boost your creativity, consider changing one to two elements of your daily routine. If you are working on a certain project, consider stopping one project to work on another project at regular intervals throughout the day or week.

    Read. While reading provides many intellectual benefits, reading is also beneficial for boosting creativity, exercising your brain and provide creative inspiration.____Consider reading about subjects that were previously uninteresting to you. This change in the norm might spark your creative interest.

    ____ Our packed schedules have no room for creative thinking. Take a certain amount of time every day to quiet, refresh and clear the mind while relaxing the body. This quiet time can consist of a yoga workout, meditation or simply sitting still in a dark and quiet room, in a peaceful garden or on a beautiful beach.

A. Schedule quiet time.

B. It can become weak due to stresses

C. Creativity is a natural quality

D. Often, creativity is blocked due to a too familiar routine

E. These activities will encourage a flow of creativity.

F. Read as much as possible about several different subjects.

G. Typically, students will do well in subjects they are interested in