氨基酸平衡
参考答案：饲料中各种必需氨基酸的种类和含量与动物的需要相吻合。
At a rough estimate .Nigeria is Great Britain.
A．three times the size as
B．the size three times of
C．three times as the size of
D．three times the size of
体内主要代谢途径为N-脱乙基的是
A．依那普利B．普鲁帕酮C．美托洛尔D．双嘧达莫E．氯沙坦
At a rough estimate .Nigeria is Great Britain.