By saying obesity is a disease, public health campaigns are thought to indicate that weight gain A.is caused by bacteria B.is related to the environment C.is people's own fault D.is mainly due to social factors
A.is B.is C.is D.is
【参考答案】
C 解析：该句提到，一个原因也许就是公众健康运动为肥胖打上疾病的烙印，使之看起来更像个人的原因而不是由于环境和社......