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

更多内容推荐

• 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
• 在北方的冬天，戴眼镜的人从室内走进暖和的屋内，镜片会变得“模糊”，这个现象是属于物态变化中的（）A．汽化B．液化C．凝华D．溶解-物理
• A new plan for getting children to and from school is being started by a local government in Eastern
• ELooking for a low-cost path to self-knowledge? A way to mine your subconscious (潜意识的) for clues to
• 阅读下面短文，掌握其大意；然后从各题所给的A、B、C和D选项中，选出最佳选项。The Voice of America began during World WarⅡ. When Germany wa
• Tales of the supernatural are common in all parts of Britain. In particular there was（and perhaps st
• 自然界中的露水与雾的形成属于______现象；放在箱子中的卫生球，过一段时间变小了，这是______现象．-物理
• （2011•湘潭）将一个塑料袋套住带叶的树枝并扎紧袋口，如图所示．过一晚后，塑料袋内壁附着很多小水珠，小水珠经历的物态变化是（）A．先升华后液化B．先蒸发后液化C．先蒸发后凝华D-物理
• 日本福岛第一核电站核泄漏事件后，湖南长沙三一重工股份有限公司向日本捐赠一台62米混凝土泵车，参与福岛核电站反应堆冷却作业，这台62米泵车在给高温机组注入海水进行降温时-物理
• Visiting U.S. President George W. Bush said in Beijing Friday that both China and the United States
• In Europe people hold the fork in the left hand and the knife in the right throughout the meal, a sy