问题如下图：
选项：
A. 
B. 
C. 
解释：
请问这道题C为什么不对呢，样本不是应该能代表总体特征的吗？
NO.PZ2018062016000037 问题如下 Whiof the following statements is most correregarto sample? A.all the organisms of the same group or species B.a subset of a population C.a characteristic of a population B is correct. A sample is a subset of a population. 正确答案这句话在教材哪里
NO.PZ2018062016000037 问题如下 Whiof the following statements is most correregarto sample? A.all the organisms of the same group or species B.a subset of a population C.a characteristic of a population B is correct. A sample is a subset of a population. A为什么错呢
