药材番泻叶所含的化学成分类型是（）
A.蒽醌类
B.挥发油类
C.生物碱类
D.黄酮类
E.皂苷类
参考答案：A
—Anna，where you with so many things in your hands?
—To my office. It has been moved to the fourth floor．
A．are; heading
B．will; head
C．have；headed
D．do; head
遗传病只要及时治疗，一般是可以治愈的．______．
