早晨，室外的花草上的小露珠，这是_________现象；寒冷的冬天，清晨起床看到窗户上白色的冰花，这是_________现象．而寒冬，洗涤油污的盘子，用温度较高的热水洗涤效果好，这-九年级物理

更多内容推荐

• 以下措施中，无法使气体液化的是（）A．使气体温度降低到足够低B．增大气体压强并降低气体温度C．使气体温度降低到足够大D．减小气体压强并升高气体温度-物理
• 用相等质量的100℃的水蒸气和100℃的水分别对两个同样的物体加热，结果发现用水蒸气加热的效果好，这是因为（）A．水蒸气在液化时要放出热量B．水蒸气要放出汽化热C．水蒸气要吸收汽-物理
• 冰雹、小雪、雾和霜冻四种天气现象，其中主要通过液化形成的是（）A．冰雹B．小雪C．雾D．霜冻-物理
• Everyone should visit a lighthouse at least once.The most important reasons for such a visit is to r
• What does it mean to day that we live in world of persuasion? It means that we live among competing
• In cities with rent control, the city government sets the maximum(highest) rent that a landlord can
• The summer I was ten,my mother decided to bring us to the world of art.My brother and I were not ver
• Throughout the history of the arts,the nature of creativity has remained constant to artists.No matt
• 北方冬天某地气温降到-25℃时，该地湖面冰的上表面温度为______℃．与水接触的冰的下表面温度为______℃；家用的液化石油气是通过在常温下______的方法使气体液化的．-物理
• 医生为病人检查牙齿时，会拿一个带把的小镜子在酒精灯上烧一烧，然后放入病人口腔内，通过小镜子的反射来看清牙齿的内侧，医生把镜子烧一烧的目的是______．-物理
• 夏天，从冰箱中取出瓶装矿泉水时，过一会儿发现瓶的外壁“出汗”，这是（）A．空气中水蒸气遇冷的液化现象B．空气中水蒸气遇冷的汽化现象C．空气中水蒸气的凝华现象D．空气中水蒸气的-物理
• News (March 6, 2008) that Microsoft was making a $44.6 billion bid to buy Yahoo was greeted with he
• Reading is very important to help you learn English. To learn as much as you can from reading, you
• The words of Gandhi, Einstein and other great thinkers are to be quoted in service announcements on
• Q:I’d like to know about fluency．What can I do to feel better when I’m talking to other people? Do y
• Successful people in international business understand the cultures of other countries and learn to
• The Chinese New Year is a great holiday to choose to celebrate Chinese culture with your child. Here
• 物质由______叫做液化．气体液化时会______．通过______或______的方法可以使气体液化．-物理
• 把放在密闭房间里的电冰箱的门打开，接上电源，工作了一段时间后，房间的温度理论上将______（填“降低”“升高”或“不变”）-物理
• 我国民间有句谚语：“水缸穿裙子，天就要下雨、”其中，“水缸穿裙子”是指盛水的水缸外表面出现了一层密密麻麻的小水珠、小水珠是由（）A．水缸中的水蒸发形成的B．空气中的水蒸气液-物理
• Chinese President Hu Jintao, on his way to talks with President George W. Bush in Washington, on Tue
• When early colonial settlers went to America, they took many forms of dance to their new home. Squar
• Do you have any strong opinion on co-educational or single-sex schools? A supporter of co-education
• In 1837, the historian Carlyle made the first recorded use of the word " queue" (排队). He
• It is well that young men should begin at the beginning and occupy the least important positions．21
• 据传有一夏天洋人宴请林则徐，其中一道甜点为冰淇淋，因其上白气不断，林则徐以为必烫故以嘴吹之，谁知入口却冷，洋人笑以为柄；林则徐声色不动，过得几日，回宴洋人，其中一-物理
• 能说明液化放热的事例是（）A．下雪不冷化雪冷B．霜前冷雪后寒C．水蒸气烫伤往往比开水烫伤严重D．手拿干冰容易冻伤-物理
• Do you know what it means when somebody tells you that he had “a catch-22 experience”?The phrase “ca
• I came to study in the United States a year ago. Yet I did not know the real American society until
• Professor Reason recently persuaded 35 people to keep a diary of all their absentminded actions for
• A study of a university in Shanghai had found that many of the students there are using a quote（引语）f
• Australia is famous for its beautiful beaches. And Australian people love swimming and going to the
• What do literary greats Sir Arthur Conan Doyle and Robert Burns have in common? They both lived and
• A recent survey of teachers found that an unhealthy passion with celebrity culture is having a negat
• As is known to all, the organization and management of wages and salaries are very complex. Generall
• 春暖花开、香飘四野，在无风的日子里，我们也能闻到芳香，这是由于花朵中的芳香油分子发生了______现象的缘故．夏天的早晨，室外的花草、树叶上常常有晶莹的小露珠，这是____-物理
• I believe that my country, Poland, is a perfect example for a place where food is particularly impor
• Today, roller skating is easy and fun. But a long time ago, it wasn't easy at all. Before 1750,
• Every year thousands of tourists visit Pompeii, Italy. They see the sights that Pompeii is famous fo
• 已知氧气、氮气和氨气的沸点分别为：-183℃、-196℃和-33.5℃，将三种气体在常温下混合后逐渐降温至-150℃，在降温的过程中，它们液化的先后次序是（）A．氨、氧、氮B．氮、氧、氨C．-物理
• BWolves are in the news these days, especially with the controversial（有争议的）Alaskan Wolf Hunting Fest
• Watch a baby between six and nine months old,and you will observe the basic idea of geometry（几何学）bei
• Manhattan Island is surrounded on the east by the East and Harlem Rivers and on the west by the Nort
• Being considered a leader in our society is indeed of high praise. Leadership means power, commands
• How many men do housework? Recently a European commission(委员会) tried to find out people’s ideas and
• 在今年的南方雪灾中有些地方出现雾凇现象，雾凇形成是______现象；夏天，打开冰箱门时，在冰箱门附近出现“白气”，“白气”形成是______现象．（填写物态变化名称）-物理
• It’s only 4 hours flying time from Sydney, but a world away. What better place to rest than a countr
• The American newspaper has been around for about three hundred years. In 1721, the printer James Fra
• It is often necessary to release a fish, that is, set it free after catching, because it is too sma
• 以下是一些常见的物理现象，把相应的物态变化填在横线上．（1）冬天从室外到教室，带眼镜的同学镜片上有一层水珠，这是______现象．（2）在寒冷的冬夜窗户上出现的冰花，这是_____-物理