金钱草的主要化学成分是
A．黄酮类 B．蒽醌类 C．生物碱 D．木脂素 E．香豆素类
参考答案：A
The woman she acted in the film is ______ the women in the 1930s. [ ]
A. typical of
B. conventional of
C. impressive of
D. consistent of
加弹机在线张力仪系统一般具备（）功能。
A.断头显示
B.张力异常切断
C.实时张力图谱显示
D.产量统计
