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【单选题】
血液的有效保存期如何制定的?A.
根据红细胞输注人体后24小时存活率为70%以上时保存天数
B.
根据红细胞输注人体后24小时存活率80%以上时保存天数
C.
根据红细胞输注人体后24小时存活率90%以上时保存天数
D.
根据红细胞输注人体后48小时存活率为70%以上时保存天数
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【简答题】V. In 1955, Ray Kroc visited a small restaurant in California. The restaurant was built next to the road, so customers could drive up to the restaurant and drive away easily. The restaurant was owned ...
【简答题】V. In 1955, Ray Kroc visited a small restaurant in California. The restaurant was built next to the road, so customers could drive up to the restaurant and drive away easily. The restaurant was owned ...
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