下列物态变化中，展于液化现象的是（）A．湿衣服变干B．戴眼镜的人装开水时，镜片变模糊C．冬天，水结成冰D．放芹衣箱里的樟脑丸越来越小-物理

更多内容推荐

• How men first learned to invent words is unknown, in other words, the origin of language is a myster
• Malaysia’s Prime Minister, Mahathir Mohamad has been retired. But he didn’t go quietly. In his final
• 淮安2010年冬季大雾天气比往年频繁，而霜却比较少．雾是由于空气中的水蒸气______形成的，霜是由于空气中的水蒸气______形成的（均填写物态变化的名称）．-物理
• 发生火灾时，要使用液态二氧化碳灭火器．这种灭火器在常温下用______的办法使二氧化碳气体液化装入钢瓶里的．使用时需要注意手先放到钢瓶的木柄上，然后再打开螺帽，否则会因液-物理
• When one looks back upon the fifteen hundred years that are the life span of the English language, h
• 被水蒸气烫伤往往比被同温度的水烫伤更为严重，这是因为水蒸气______要______热．-物理
• The United States is wellknown for its network of major highways designed to help a driver get from
• 人们常将新鲜蔬菜装在塑料袋内并密封，放在冰箱冷藏室中保存．在夏天，当把装有蔬菜的塑料袋从冰箱中取出后，看到塑料袋内、外都有水珠．请解释这个现象．-物理
• CARDIFF, Wales Poets, singers and musicians from across the globe gathered in Wales to celebrate the
• To face the musicLike every language, American English is full of special expressions, phrases that
• 下列说法正确的是（）A．放在碟里的酒精过一段时间后不见了是升华现象B．冬天冰冻的衣服会变干是凝华现象C．雾是水蒸汽液化形成的D．霜的形成是凝固现象-物理
• China's government has issued a severe weather warning after the heaviest snowfalls in decades.
• 生活中常见的露水是______现象，雾是______现象，霜是______现象．（填物态变化名称）-物理
• 液化石油气在常温下装入罐中时，采取___________方法使气体液化。-八年级物理
• 冬天对手哈气，可使手瞬间变暖，为什么？而对手吹气，会使手感到凉，又是为什么？-物理
• 秋天的早晨，爸爸开车和小明出去有事，在泰州市区时几乎看不到雾，但是到了农村地区雾就特别大，小明不知道是怎么回事，请你帮小明解释原因（）A．农村脏，小水珠容易附着在尘埃-物理
• President Bush this week announced his support for a proposal by Israeli Prime Minister Ariel Sharon
• 被100℃的水蒸气烫伤比被100℃的水烫伤更严重，这是因为（）A．水蒸气液化要放出大量的热B．水蒸气比水温度高C．水蒸气液化要吸收大量的热D．水蒸气比水传热快-物理
• Informal conversation is an important part of any business relationship. Before you start a discussi
• The number of speakers of English in Shakespeare’s time is estimated(估计) to have been about five mil
• Is it possible to persuade mankind to live without war? War is an ancient custom which has existed f
• 如图所示，是桂北猫儿山上雨后形成的美丽雾气．关于雾的形成，下列说法中正确的是（）A．雾是从山中冒出来的烟B．雾是水蒸气凝华成的小水珠C．雾是从山中蒸发出来的水蒸气D．雾是水-物理
• It’s no surprise why Kung Fu Hustle is the top-grossing①homegrown movie in Hong Kong. Hustle’s appro
• President Clinton’s decision on Apr.8 to send Chinese Premier Zhu Rongji packing without an agreemen
• 下列现象中不属于液化的是（）A．春天小草上的露水B．夏天冰棒冒“白气”C．秋天房顶上的白霜D．冬天人口中呼出的“白气”-物理
• 下列说法正确的是（）A．夏天，我们看到冰糕冒“白气”，这是一种升华现象B．冬天，窗户玻璃上的“冰花”是室外空气中的水蒸气凝华而成的C．利用干冰人工增雨，是因为干冰能迅速升华放-物理
• 冬天我们都有洗热水澡的习惯，洗澡过程中经常发现浴室里挂在墙上的镜子会变得模糊不清；但洗完澡后将浴室门窗敞开一会儿，镜子又清晰照人了，请你用物理知识解释上述现象．-物理
• When you are in another country, it is important to know the language, but it is equally important t
• I came to live here where I am now between Wounded Knee Greek and Grass Greek. Others came too, and
• 被100℃的水蒸气烫伤比100℃的水烫伤更严重，这是因为（）A．水蒸气比水温度高B．水蒸气液化要吸收大量的热C．水蒸气比水传热快D．水蒸气液化要放出大量的热-物理
• Are you single and dreaming of an exciting voyage vacation, but unsure of the next step? You’re not
• The Growing Credit Crisis Forces Many Companies to Seek Government HelpOn September fifteenth, Lehma
• Alexis De Tocqueville，the French political scientist，，historian，philosopher and politician．Is most
• The total on advertising spent on the Chinese mainland last year rose by 25 per cent over 2003, a su
• 医生为病人检查牙齿时，拿一个带把的小镜子在酒精灯上烤一烤，然后放入病人的口腔中，这样做的目的主要是为了（）A．消毒B．避免水蒸气液化C．加快蒸发D．避免凉着病人-物理
• 如图所示的四种现象中，其物态变化属于放热过程的是（）A．冰冻的衣服晾干B．春天冰雪消融C．冬天窗玻璃上有水滴D．用干手器将手烘干-物理
• 下列各个物态变化过程中，不正确的是（）A．铁块放热铁水B．水蒸气放热水C．液氨吸热氨气D．碘吸热碘蒸气-物理
• 下列物态变化中，属于液化的是（）A．冰棒表面上的白霜B．夏天自来水管“出汗”的现象C．沸腾的壶嘴冒出的“白气”D．冬天，雪没有熔化，但雪堆却变小了-物理
• Wearing a big hat and playing a guitar, a country music singer is using his rising and falling voice
• 如图是“雨的形成”实验装置，用酒精灯将烧瓶内的水加热沸腾后，水蒸气从细玻璃管口喷出，在离管口稍远处，可以看到雾状的“白气”．如果这时在管口处放置一块玻璃片，会发现正对-物理
• Leaders and officials from foreign countries have extended congratulations on China’s successful lau
• Everyday we go to school and listen to the teacher, and the teacher will ask us some questions. Some
• 被100℃的水蒸气烫伤往往比被开水烫伤更厉害，这是因为（）A．水蒸气比开水的温度高B．水蒸气蒸发时吸热C．水蒸气液化时放热D．水蒸气液化时吸热-物理
• Canada is a very large country.It is bigger than China.China is the third largest country in the wor
• 医生为病人检查牙齿时，拿一个带把的小镜子在酒精灯上烧一烧，然后再放入病人的口腔中，这样做的主要目的是（）A．给小镜子消毒B．使小镜子升温，防止口中空气液化C．使小镜子升温-物理
• 所有的气体在______降到足够低时都可以液化．在一定的温度下，______也可以使气体液化．气体液化后可以使体积缩小，便于贮存和运输．液化的两种方法是______和______．-物理
• 小明在厨房中发现：（1）壶里的水烧开以后，壶嘴上方冒出一团团“白气”．这“白气”实质上是一些______．小明仔细观察又发现：“白气”从喷出到消逝要经历三个物理过程．①靠近壶嘴的地方-物理
• 阅读理解。 The U.S. government has repeatedly made it clear that it would welcome China's entrance i
• Brand is often regarded as the creation of western advertisement industry. However, the earliest “br
• 写出物态变化的名称：夏天吃冰棒时，揭开包装纸后冰棒会冒“白气”______；用热风干手器将湿手吹干______．-物理