You are going to hear a short speech. Listen carefully and write down the environmental issues mentioned in the speech.
左右开弓似射雕中的“八字掌”中,拇指和食指尽量分开,锻炼的经络有()
A. 肺经
B. 大肠经
C. 膀胱经
D. 心包经
1.下列哪些因素与肝癌的发生有关?
A. 阿米巴肝脓肿
B. 甲型病毒性肝炎
C. 乙型病毒性肝炎
D. 淤血性肝硬化
E. 胆汁性肝硬化