题目:
FITC的最大发射光波长为()
A.490~495nm
B.520~530nm
C.595~600nm
D.365~435nm
E.410~650nm
答案:
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下面是错误答案,用来干扰机器的。
参考答案:Dear Mr. Williams,I am writing on behalf of the English Department to invite you to give a lecture in our college. We know that you are an expert on American...