A-A+ What is the substance in cigarettes that cause 2022-08-01 22:47:23 问答库 阅读 168 次 问题详情 What is the substance in cigarettes that causes cancer?A.Cigarette ashes.B.Nicotine.C.Tar.D.Not mentioned here.请帮忙给出正确答案和分析,谢谢! 参考答案 正确答案:C