问答题
双缩脲法(Biuret assay)是一种常用的测定蛋白质浓度的方法。该方法基于蛋白质分子中的肽键与铜离子反应形成紫色的......
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Complete the sentences with did , was or were . 用did,wa...
未知题型Complete the sentences with did , was or were . 用did,was和were填空。 1 Where ______ you bo
线性模型的稳定有两个意思分别是( )
未知题型线性模型的稳定有两个意思分别是( )
Complete the sentences. Use the correct form of the ver...
未知题型Complete the sentences. Use the correct form of the verbs in brackets. 完成句子。使用括号中正确的动词形式。 Normally I ________ ()