2012年服装服饰类最佳科技成果—某公司研制的首款能有效降低皮肤温度的T恤衫，如图所示，它利用具有吸湿排汗功能的面料加快人体汗液从人体吸收热量，从而降低人体温度。汗液从-八年级物理

更多内容推荐

• 下列四个实验中，能够使蒸发加快的是（）A．给盛水的饮料瓶加上盖B．用电吹风把湿头发吹干C．将新鲜的蔬菜装入塑料袋放入冰箱冷藏D．将湿衣服摊开晒在通风向阳处-八年级物理
• Almost all cultures celebrate the end of one year and the beginning of another in some way. Differen
• 阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。DPeople in Shanghai can quench their thirst with high
• 阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。CChina’s economic growth “hard to predict”The worsening global econ
• Attempt a guess at the following question: In the English-speaking world, which country has the leas
• Have you ever noticed what happens to an idea once you express it? Just talking about it or writing
• 在探究“水的沸腾”实验中：（1）实验装置如图甲所示，在组装过程中需要先调整的是（选填“A”或“B”）部分．（2）当水温升高到90℃时，每隔1min记录一次温度，直到水沸腾后几分钟为止，记-八年级物理
• 夏天从冰箱中取出的鸡蛋，常看到鸡蛋先湿后干的现象，此现象反映的物态变化过程正确的是（）A．先液化后蒸发B．先升华后蒸发C．先液化后升华D．先凝华后升华-八年级物理
• 秋天的早晨，山区公路上容易出现大雾，影响行车安全。从物理学角度看，雾是由下列哪种物态变化形成的A．液化B．凝华C．升华D．汽化-八年级物理
• Greece is one of the most beautiful countries of the world．Millions of tourist visit this place ever
• Our planet is in trouble．Polluting industries and corporations are destroying our planet, resulting
• As a palace, the Tower of London．was a great place to live．As a prison, it, wasn’t so nice ——especia
• The year is 2094．It has been announced that a comet (彗星) is heading towards the Earth．Most of it wil
• 下列物态变化中，属于液化现象的是（）A．春天，冰雪消融B．夏天，洒水车洒在地面的水变干C．秋天，草叶上出现露珠D．冬天，湖水结成冰-八年级物理
• 商场里的保洁员在拖过地后，常用电风扇对着地面吹，这样做的目的是通过加快空气流动来加快（填物态变化的名称），使地面尽快变干。-八年级物理
• Since new technologies are ever growing, employers now have the chance to monitor （监控） their employe
• Many Americans have been leaving their cars at home and riding to work on bicycles. Andy Clark is th
• It’s three devices in one. iPhone is more than just a phone. It combines three devices in one: arevo
• 夏天打开冰箱，可以看到从冰箱里冲出一股“白气”；下列事例中，物态变化方式与“白气”形成原因相同的是A．把湿衣服挂在阳光下晒干B．用牛奶自制牛奶雪糕C．将丁烷气体贮存在气体打-八年级物理
• 在做“观察水的沸腾”的实验时，甲、乙、丙三个实验小组的同学分别从图中A、B两套实验装置中任选一套来完成实验．（1）甲组同学从水温升高到90℃时开始记录数据，以后每隔1分钟记录-八年级物理
• When is the right time to get kids involved in teamwork and what does it mean to be part of a team?
• 演唱会上，坐在后排的小莉可以清晰地听到他喜欢的明星的歌声。因为歌手发出的声音经过扩音设备___________大大增强。虽然看不清台上的歌手，但根据声音的_______，也能辨认出-八年级物理
• 图出现的现象或情景中，与你学过的什么物理知识有关？参照示例，把下表填写完整．-九年级物理
• 在探究“水的沸腾”实验中：（1）除了图中所示的器材，还需要一个重要的测量仪器是．（2）若操作正确无误，根据乙可知此时烧杯中水的实际温度是℃．（3）表是本实验过程中不同时刻的温度-八年级物理
• 寒冷的冬天，小明在晨练时看到一些与物态变化相关的现象，请你将物态变化的名称填在横线上：跑步时嘴里呼出的“白气”是现象，路边树上的雾凇是现象．-八年级物理
• 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-八年级物理
• 戴眼镜的人从寒冷的室外进入温暖的室内，镜片上会蒙上一层小水珠，这是室内的水蒸气遇到冷的镜片而成的-八年级物理
• There are three branches of medicine. One is called "doctor medicine," or "scientific
• 运动员关节扭伤后，马上给他喷涂一种雾状的极易挥发的液态氯乙烷，用它作麻醉剂可使运动员的皮肤迅速冷却，在一段时间内失去疼痛感，这是由于氯乙烷A．汽化吸热B．凝固放热C．熔-九年级物理
• In the past, American families tended to be quite large. Parents raising five or more children were
• A town in Oxfordshire has become the first in the UK to have biomethane（生物甲烷）gas from human waste pi
• 热现象在一年四季随处可见，下列属于液化现象的是A．初春，湖面上的薄冰层开始融化B．盛夏，打开冰箱门形成的“白气”C．深秋，屋顶的瓦上结了一层霜D．隆冬，教室的窗户玻璃上出现-八年级物理
• In my whole childhood I focused on training to play professional soccer. Through the mid 90’s I 36
• 在探究“水沸腾的规律”的实验中，（1）如图（a）(b)所示，图­­___是水沸腾时的情况。（2）当水温上升到90℃时，每隔30s记录一次温度，然后作出温度与时间的图像，如图所示-九年级
• TV talk shows dominate daytime television. And anyone who watches them regularly knows that each on
• Every decision is made within a decision environment, which is defined as the collection of informat
• The new iPhone 3G should please everyone. Its look and feel are only slightly improved, but a faster
• Friendship Day in India falls on the first Sunday of August every year. It is celebrated with many a
• 夏天，人从空调车里或从有空调的室内出来后，有一种走进蒸笼的感觉，非常地热，为什么？-八年级物理
• If you still know little about the “IMF”, it’s time you started to read about it, for it has been a
• 完形填空I came to study in the US last fall. My life had been quite 1since I arrived at Andover. Althoug
• 在一次观察水沸腾的实验中，所用温度计准确，观察到沸腾时的温度是97℃，这可能是什么原因?（）A．容器里盛的水太多B．当地的大气压大于1标准大气压C．加热的火力太弱D．当地的大气-八年级物理
• 在透明塑料袋中滴入几滴酒精，将袋挤瘪，排尽空气后把口握紧，放入80℃的热水中，发现塑料袋鼓起；拿出塑料袋，过一会儿塑料袋又瘪了。在此过程中发生的物态变化是（）A．先液化-九年级物理
• Meeting people from another culture can be difficult. From the beginning, people may send the wrong
• 图甲所示，从游泳池里出来的小明感觉比下水前冷，是由于。他向下看，感到池水的深度比实际的要。请你在图乙中大致画出小明在岸上B点观察池底A点的光路图。-八年级物理
• 生活中常常用酒精为高烧病人实施物理降温，这是因为。寒冷的冬天可以两手相互搓搓取暖，这是因为。-九年级物理
• 下表是小玲给酒精加热直至沸腾的实验记录数据。从数据可知，酒精的沸点是℃，查资料发现测量值比在标准气压下酒精的沸点高，说明当时酒精液面上方的气压（选填“大于”、“等于”或-八年级物理
• Coupons to spend“How did you spend your coupons?”On their first day back to school, many students in
• April Fool’s Day（愚人节）, was a day of laughing and jokes. This day is kept in many countries, not onl
• The Crowne Plaza Copenhagen Towers has been named the greenest one in the world by the travel and to