1900年,奥地利科学家兰德斯坦纳研究发现,人类的血型有:A型、()、AB型、O型。
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漂白粉浓度10克~20克/立方水体,水温()℃时,药浴15分钟~20分钟,防治()。
医药质量体现在医药产品的质量和医药工作者的服务质量。
A. 正确
B. 错误
我国制定国家赔偿法的现实条件,主要包括哪几个方面?
The correct procedure for giving an auxiliary boiler a bottom blow, is to begin()
A. when the boiler has been secured long enough for most solids to settle
B. when the boiler has been cooled to ambient temperature
C. only after raising the water level to within 0~5 inch of the high water cutout only
D. after bypassing the low pressure