There are two main causes of cancer: heredity and environment. We can...
There are two main causes of cancer: heredity and environment. We can...
1.癌症的两个起因。
2.造成癌症的环境原因。
3.非个人原因造成的环境污染。
There are two main causes for...
Smoking and Cancer1.吸烟对健康有害。
2.吸烟易患癌症。
3.世界各国政府应采取严厉措施限制吸烟。Smoking is...
Nowadays, with the development of science and technology, moreandm...
Smoking is harmful to the health of people . It not oilly pollutes a...
There are two main causes of cancer: heredity and environment. We can...
Cancer and Environment
提纲
1.癌症的两个起因。
2.造成癌症的环境原因。
3.非个人原因造成的环境污染。
Ther...