OG 11 逻辑 第14题：

Within 20 years it will probably be possible to identify the genetic susecptibility an individual may have toward any particular disease. Eventually, effective strategies will be discoverd to counteract each such susceptibility. Once these effictive strategies are found, therefore, the people who follow them will never get sick.

A. For ervery disease there is only one strategy that can prevent its occurrence.

B. In the future, genetics will be the only medical specialty of any importance.

C. All human sickness are in part the result of individuals' genetic susceptibilities.

D. All human are genetically susceptible to some diseases.

E. People will follow medical advice when they are convinced that it is effective.

Reasoning:What assumption is this argument based on？ The argument states that people who follow the appropriate strategies for counteracting their genetic susceptibilities to disease will never get sick. How can it be that they would never get sick? The argument requires an assumption about the cause of all sickness. Every known disease of human s must correspond to some genetic susceptibilities. The argument thus follows that individuals get sick from those diseases to which they have genetic susceptibilities and that people will not suffer from any illness unless they have such susceptibilities.

我的疑问是:  

既然 Once these effictive strategies are found, therefore, the people who follow them will never get sick，那么所有人只能得 genetic susceptibilities相关的病，其他病即使使用 effective strategies 也不一定 never get ill. 因此我认为正确答案c中的 in part 是不是应该改为all更合适呢？

另外，上述 Reasoning 中 红色字体的部分到底是什么意思？ 哪位NN 帮忙解释一下？ 谢谢了！！

all的话就走极端了，all的相反一面不是not any

此题的逻辑意思还是应该从not+weaken这个形式着手