限制吸烟　世纪末的承诺周延明还有不到五年时间，人类将进入一个新世纪．随着二十一世纪的来临，科学技术的高度发展，将会帮助人类战胜许多人类曾经畏惧的病痛，从而延长人的寿命．但是，一些专家预测，既使进入二十一世纪，仍有＂四大瘟疫＂严重威胁着人类，其中香烟被... Limiting Smoking Commitment at the End of the Century Zhou Yanming In less than five years, mankind will enter a new century. With the advent of the 21st century, the high degree of development in science and technology will help mankind to defeat the suffering of so many human beings and thus prolong the life expectancy of mankind. However, some experts predict that even in the 21st century, there are still “four major plagues” that pose serious threats to human beings, of which cigarettes are ...