A few years ago, SARS _小题1:______ out in the mainland of China, causing some people _小题2:________ (kill) or nearly got close to death. The situation was so severe that there was_小题3:______ time to debate who is to blame. The most important thing for the government to do is to find out the __小题4:________ of this deadly disease. They invited all the most  __小题5:_______ (experience) experts in this field to discuss and quite a few suggestions were put forward. Some of the top experts then tested them to see _小题6:_______ they were available. Doctor Zhong Nanshan chose one patient who was seriously ill and had little hope_小题7:_______ picking up and had the new medicine tested on him. __小题8:______ his great joy, this patient recovered! He made his way to his office and telephoned the top official, __小题9:_______ (tell) him this exciting news. For convenience, he moved to live in his office. His method did make sense. Not soon after that, the __小题10:___ hospitals also controlled this terrible disease and kicked it out finally.

判断是否为社区优先解决的健康问题的原则是（）。

A.重要性

B.可改变性

C.可行性

D.重要性和可行性

E.重要性、可改变性和可行性