普萘洛尔的代谢（）.
A．氟他胺
B．非那雄胺
C．左炔诺孕酮
D．丙酸睾酮
E．达那唑
参考答案：B
Great changes _________ in Tongren in the past five years. [ ]
A. have happened
B. have taken place
C. have been happened
D. have been taken place
肠内营养剂的种类有（）、蛋白质、脂肪及生理需要量的电解质、维生素和微量元素等。
