碳循环carbon cycle
参考答案：
碳在大气、陆地生命体和土壤有机质等几个分室中的迁移和转化过程。
—Why was the boy beaten by his father?
—He _____ to his father that he had _____the table.
A．lain/lay
B．laid/lied
C．lied/laid
D．lay/laid
患者心烦心悸，失眠多梦，潮热盗汗，舌红少津，脉细数，证属（）.
A.心阴虚证
B.心血虚证
C.心气虚证
D.心阳虚证
E.脾肾阳虚证
