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问题描述：

[单选] 在肩部，当腋后纹头直上，肩胛冈下缘凹陷中是（）
A．臑俞 B．肩外俞 C．肩中俞 D．膏肓
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答案解析：无
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上一篇：位于背部，当第12胸椎棘突下旁开1．5寸是（） 下一篇：位于头部耳后，在乳突后下方凹陷中是（）

随机题目

汽车上两侧都有黄色的方向灯，左侧的黄灯亮，就是提示行人和其他车辆他要（）。
在公路上做哪些活动是妨碍交通，也是不安全的。（）
行人安全过马路要注意（）
Phone signals are relayed between cell towers and cellphones via radio waves． This radio frequency—or RF—radiation is a type known as non-ionizing （非电离的）． Unlike X-rays， non-ionizing radiation does not deposit enough energy into cells to release electrons from atoms or molecules， producing ions． So it tends to be far less harmful than ionizing radiation， such as X-rays． But that does not mean radio waves might not cause harm．What is the paragraph mainly about？
Standing in the shower waiting for the water to heat up could be a thing of the past， along with all the wasted water． Three and a half years ago， Lindy Honeychurch， a thirty-year-old Australian full-time mum living on a farm outside Launceston， didn"t consider herself a very good water saver． Neither did her partner who often complained about it with good reasons． Their farm had to rely on tank water and solar power， which meant water had to be trucked in if the tank water ran out in summer． "I looked at where I could save because I could lead an easier life without the complaint，" she said． Modeling her idea on a car thermostat （恒温器）， Lindy used her kids" magnetic （磁的） drawing board to design a device that diverts the cold water back down the hot water pipe． "The first aim when I started designing was to keep it really small and simple without having to use power． I wanted to keep it as something that everyone could use，" said Lindy．What does the second paragraph mainly about？
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