用玻璃管向盛有紫色石蕊试液的试管里吹气，过一会儿再给试管加热，试管里溶液颜色变化情况是[]A．紫色→红色→紫色B．紫色→蓝色→红色C．蓝色→红色→紫色D．红色→紫色→蓝色-九年级化学

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• 某同学设计了如下一组实验。取四朵用石蕊试液染成的紫色的干燥纸花，分别按下图进行实验。回答下列问题：（1）观察到纸花的颜色变化是：Ⅰ、纸花变成红；Ⅱ、__________；Ⅲ、纸花不-九年级化学
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• 使用温度计时，首先要观察它的量程和认清它的。小强在用温度计测量烧杯中液体温度时读取了四次数据，每次读数时温度计的位置如图所示，其中正确的是。图中所示的是用温度计分-八年级物理
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• 图所示的是一支常用体温计。下列关于该体温计的说法中，正确的是（）A．它的示数是8℃B．它的分度值是1℃C．它不能离开被测物体读数D．它是根据液体热胀冷缩的规律制成的-八年级物理
• 以下温度中最接近25℃的是（）恩施州夏季最热的室外温度正常人的体温夏天，让人感觉舒适的房间温度在我州，无盖锅中的沸水的温度-九年级物理
• 一支刻度均匀的温度计放在冰水混合物中时，示数是2℃，放在一标准大气压下沸腾水中时温度为98℃，用它测量一杯水的温度为26℃，请你计算一下这杯水的实际温度是多少？-物理
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• 如图所示是伽利略温度计．当气压不变，气温升高时，若不考虑液体的蒸发，则（）A．管内液面降低管外液面升高B．管内液面升高，管外液面降低C．管内外液面都升高D．管内外液面都降低-物理
• 在防范甲型H1N1流感疫情中，体温计发挥了重要作用．体温计是根据水银的_________性质制成的，一支用过而没有甩过的体温计，读数停留在37.8℃，被误用来测量病人的体温．若病人-九年级物理
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