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How the Body Keeps the Same Temperature{{/B}} The temperature of your body should be always just the same, no matter whether the weather is hot or cold. That is why the doctor uses his thermometer when you are sick. When you are well, your temperature is ninety-eight and six tenths degrees. If he finds it {{U}} (51) {{/U}} than that, it is a sure sign that something is wrong. The body keeps the same temperature all the time, because it balances (平衡) the heat it produces and {{U}} (52) {{/U}} off. It is always burning up food and producing heat. It can produce heat faster when it needs to or give off heat faster when it becomes too warm. Let’s see {{U}} (53) {{/U}} this happens. The heat of your body is given off chiefly throu A. weather B. climate C. circumstance D. environment [单项选择]指出下列哪项不是骨髓干骺端结核的X线表现()
A. 边缘清楚,圆形椭圆形骨破坏 B. 病灶偏于一侧,靠近骨骺板 C. 骨硬化及碎片样死骨 D. 骨皮质破坏轻 E. 针状骨膜反应 [多选题]电气设备按其电压高低分为哪两种:()
A.中压电气设备 B.超高压电气设备 C.高压电气设备 D.低压电气设备 [单项选择]通风与空调工程使用的绝热材料和风机盘管进场时,应按现行国家标准()的有关要求进行见证取样检验。
A. 通风与空调工程施工规范 B. 通风与空调工程施工质量验收规范 C. 建筑节能工程施工质量验收规范 D. 建筑工程施工质量验收统一标准 [单项选择]某年轻患者,因左上智齿颊侧错位,需局麻下拔除。
如果在注射麻药一、二分钟后,患者感到恶心、想吐,无其他不适或异常。最可能的原因是( ) A. 发生了肾上腺素反应 B. 发生了中毒反应 C. 发生了过敏反应 D. 麻醉了上牙槽后神经 E. 麻醉了腭中、腭后神经 [多选题]锂电池汽车火灾扑救主要存在()、()、爆炸等风险,易造成指战员伤亡。( )
A.触电 B.中毒 C.窒息 D.冲击 [判断题]厂家使用的调试钥匙除防误装置专责人外,不得交给现场其他人员使用。
A.正确 B.错误 我来回答: 提交
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