维生素B6磷酸化后可变为（）
A.钴胺素
B.核黄素
C.泛酸
D.磷酸吡哆胺
E.烟酸
参考答案：D
China has been pushing the reform of public hospitals ________ all its citizens.[ ]
A. in charge of
B. for the purpose of
C. in honor of
D. for the benefit of
正常粪便镜检，无( )
A．大肠杆菌B．脂肪滴C．肠黏膜上皮细胞D．肌肉纤维E．淀粉颗粒
