问：你认为结核病控制中最大的挑战是什么？

Q: What do you consider is the biggest challenge in TB control?

youdao

问：世卫组织在控制疟疾方面发挥什么样的作用？

Q: What is WHO's role in malaria control?

youdao

问：对哪个群体最难进行烟草控制教育？

Q: Which group is the most difficult to educate on tobacco control?

youdao

So I hit control X. It's very unnecessarily arcanely saying save modified buffer, and then answering no will destroy changes.

敲入控制键X，它会很罗嗦地,问你是否保存所做的修改,如果回答为NO，就不保存修改过的部分。

哈佛公开课 - 计算机科学课程节选