题干

下列说法中,正确的是(  )

A:只有热传递才可以改变物体的内能

B:气体温度越高,每个分子运动的速率一定越大

C:布朗运动是指在显微镜下观察到的液体分子的无规则运动

D:热量不可能由低温物体传给高温物体而不发生其他变化

上一题 下一题 0.0难度 选择题 更新时间:2018-11-14 09:31:47

答案(点此获取答案解析)

D

同类题3

    Tahiti is the largest island of the French Polynesia in South Pacific. It covers 1,045 km and has a population of 183,600.The weather there is neither too hot nor too cold. It's always warm and humid.
    Tahitian people are very friendly and welcoming. They welcome visitors with music, dance and flowers. The  Tiare Tahiti flower, which can only be found in Tahiti, is used for greeting arriving visitors and returning family, It's popular for women and men to wear the flowers behind their left ears.
    In Tahiti, there are always a lot of things to do and to see. Around the island are hundreds of places perfect for diving. In the waters, you can meet all kinds of colorful fish and many other living things that you can’t name. Feeding sharks is another exciting popular activity. You can stand in the water behind a safe rope to watch a shark trainer hand—feed the sharks, or enjoy this fantastic scene from the boat. If you want to find a place to swim, have a sun bath or admire the beautiful sunset, Pointe Venus Lighthouse, a black sand beach, is a great choice.
    In the evening ,you can have Tahitian food, Chinese food and French—style dishes at To'ata, a square with many small restaurants. All kinds of fruit juice from coconut milk to pineapple juice can be found everywhere. Some hotels in Tahiti are built above the waters. Beautiful fish swimming below can be seen through the glass floor or coffee table. They are really wonderful places to relax and refresh you.
    Tahiti, an amazing place to do everything or nothing at all, is waiting for you.