绪论 Introduction 绪论测验 Introduction test
1、 的出现,使生命科学进入到分子水平。With the appearance of , life science has entered the molecular level.
答案: X射线衍射技术 X-ray diffraction technique
2、 以下说法错误的是:The following statement is wrong:
答案: 算数平均值与真值的误差落在[-σ,σ ]范围内的概率为38.3%。The probability that the error between arithmetic mean and true value falls within the range of