常导致气血凝结阻滞不通的邪气是（）
A.风邪
B.寒邪
C.湿邪
D.燥邪
E.火邪
参考答案：B
Look, she is ____________ a picture book in the room.[ ]
A. reading
B. watching
C. seeing
D. looking
砂子的细度模数越大，砂颗粒就越细。( )
