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【简答题】
胶原酶在上皮类细胞原代培养时经常使用,胶原酶作用的对象是(),因此不容易对细胞产生损伤。胶原酶的使用浓度为0.1~0.3mg/L或200000U/L,作用的最佳pH为()。
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平等、博爱、和平
C.
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D.
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boring
B.
interest
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interesting
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difficult
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Muller
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Peterson
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A.
consecutive
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previous
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subsequent
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D.
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difficulty to link, difficulty to create
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difficulty linking, difficulty creating
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difficulties linking, difficulties creating
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大数据
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