下列关于实验操作步骤的叙述中,正确的是()       A.  用于

下列关于实验操作步骤的叙述中,正确的是()

      A  用于鉴定还原性糖的NaOH溶液和CuSO4溶液,可直接用于蛋白质的鉴定

      B  鉴定脂肪时需要用显微镜才能看到被染成橘黄色的脂肪颗粒

      C  鉴定还原性糖时,要先加入NaOH溶液摇匀后,再加入CuSO4溶液

      D  用于鉴定蛋白质的NaOH溶液与CuSO4溶液要混合均匀后,再加入含样品的试管中,且必须现配现用

答案

B

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