骨肉瘤
A．血清癌胚抗原升高B．血清甲胎蛋白升高C．血清CA19-9升高D．血清酸性磷酸酶升高E．血清碱性磷酸酶升高
参考答案：E
自然铜炮制后增强的作用是（）。
A.收敛生肌
B.收敛止痒
C.散瘀止痛
D.平肝潜阳
E.平肝止血
He attends the evening class ________ , that is, Monday, Wednesday and Friday.
A．every three days
B．every the second day
C．every two day
D．every other day
