哪项有助于鉴别肝癌和良性活动性肝病
A．HBsAg
B．AFP阳性
C．AFP阴性
D．AFP和ALT动态曲线
E．肝功能明显损害
参考答案：D
It ___________ us thirty minutes ___________ from here to the station. [ ]
A. needs, to walk
B. takes, walking
C. takes, to walk
D. needs, work
碗形豆
