Which of the following is more likely to be the source for problems in this survey? A.This survey is tilted in favor of local alcohol distributors, who have a conflict of interest with online sellers. B.The data collection and analysis are not scientific and logical. C.Subjects are not sampled in a right way and can not represent the whole American teenage population. D.The survey results are affected by gifts to subjects, which can be misleading.
A.This B. B.The C. C.Subjects D. D.The E.
【参考答案】
A 解析：细节题。从文中的内容可知，对于发起者来说，首先要考虑问题的起源。委托该项调查的商会长久以来一直反对扩大......