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美国医学物理学家学会(AAPM)规定加速器机架、机头角度指示误差() ["0.1°","0.5°","1°","2°","5°"]
试述风热犯肺证与肺热壅盛证的区别。
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美国医学物理学家学会(AAPM)规定加速器X射线平坦度的稳定性每月监测的允许精度() ["±1%","±2%","±3%","±4%","±5%"]
痰迷心窍证和痰火扰心证有何异同?